---
title: diode — school dictionary · trees and pragmatics
description: «diode» in the school dictionary: A diode is a small electronic part that lets electric current flow in only one direction, like a one-way door. Every meaning for a pupil with its dependency tree and pragmatics.
---

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# diode

<!-- .vintro -->
**Who acts:** diode, small electronic part, emitting diode, current, We, LED · **What happens:** be, let, emit, give out, pass, go · **To what, where:** small electronic part, electric current flow, one direction, light, diode, one way

<!-- .vabout -->
«diode» in the school dictionary: its 2 meanings for a pupil and its 7 examples, every sentence parsed by Mova itself — its syntax tree, a dependency tree in the style of Universal Dependencies, and its pragmatics clause by clause. The word in the dictionary, with its sense in the lessons: [diode in the school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/w/diode.md).

## Meaning 1 {#m1}

<!-- .ven lang=en -->
A diode is a small electronic part that lets electric current flow in only one direction, like a one-way door.

<!-- fold The tree, 21 words -->
```conllu
# sent_id = dict:school:diode:m1:1
# text = A diode is a small electronic part that lets electric current flow in only one direction, like a one-way door.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	diode	diode	NOUN	NN	Number=Sing	7	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
5	small	small	ADJ	JJ	Degree=Pos	7	amod	_	_
6	electronic	electronic	ADJ	JJ	Degree=Pos	7	amod	_	_
7	part	part	NOUN	NN	Number=Sing	0	root	_	_
8	that	that	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	electric	electric	ADJ	JJ	Degree=Pos	12	amod	_	_
11	current	current	ADJ	JJ	Degree=Pos	12	amod	_	_
12	flow	flow	NOUN	NN	Number=Sing	9	obj	_	_
13	in	in	ADP	IN	_	16	case	_	_
14	only	only	ADV	RB	_	15	advmod	_	_
15	one	one	NUM	CD	NumForm=Word|NumType=Card	16	nummod	_	_
16	direction	direction	NOUN	NN	Number=Sing	9	obl	_	SpaceAfter=No
17	,	,	PUNCT	,	_	23	punct	_	_
18	like	like	ADP	IN	_	23	case	_	_
19	a	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	_
20	one	one	NUM	CD	NumForm=Word|NumType=Card	22	nummod	_	SpaceAfter=No
21	-	-	PUNCT	HYPH	_	20	punct	_	SpaceAfter=No
22	way	way	NOUN	NN	Number=Sing	23	compound	_	_
23	door	door	NOUN	NN	Number=Sing	9	obl	_	SpaceAfter=No
24	.	.	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a diode | a small electronic part |  |  |  |  | tree rules |
| 2 | **let** | present | a small electronic part | electric current flow |  | one direction |  | like a way door | vn give-13.1-1 «NP V NP»: agent=Agent flow=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## Meaning 2 {#m2}

<!-- .ven lang=en -->
A light-emitting diode (LED) is a diode that gives out light when current passes through it.

<!-- fold The tree, 17 words -->
```conllu
# sent_id = dict:school:diode:m2:1
# text = A light-emitting diode (LED) is a diode that gives out light when current passes through it.
1	A	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
2	light	light	NOUN	NN	Number=Sing	4	obl:unmarked	_	SpaceAfter=No
3	-	-	PUNCT	HYPH	_	2	punct	_	SpaceAfter=No
4	emitting	emit	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	diode	diode	NOUN	NN	Number=Sing	11	nsubj	_	_
6	(	(	PUNCT	-LRB-	_	7	punct	_	SpaceAfter=No
7	LED	led	NOUN	NN	Number=Sing	5	appos	_	SpaceAfter=No
8	)	)	PUNCT	-RRB-	_	7	punct	_	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	diode	diode	NOUN	NN	Number=Sing	0	root	_	_
12	that	that	PRON	WDT	PronType=Rel	13	nsubj	_	_
13	gives	give	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	acl:relcl	_	_
14	out	out	ADP	RP	_	13	compound:prt	_	_
15	light	light	NOUN	NN	Number=Sing	13	obj	_	_
16	when	when	ADV	WRB	PronType=Int	18	advmod	_	_
17	current	current	ADJ	JJ	Degree=Pos	18	nsubj	_	_
18	passes	pass	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	advcl	_	_
19	through	through	ADP	IN	_	20	case	_	_
20	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	18	obl	_	SpaceAfter=No
21	.	.	PUNCT	.	_	11	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **emit** | gerund |  | light |  |  |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source |
| 2 | **is a** | present | a emitting diode | a diode |  |  |  |  | tree rules |
| 3 | **give out** | present | a diode | light |  |  |  |  | vn contribute-13.2 «NP V NP.theme (PP)»: agent=Agent light=Theme |
| 4 | **pass** | present | current |  |  | diode |  |  | vn occur-48.3-1 «NP V PP»: agent=Theme through it=Location |

## Example 1 {#x1}

<!-- .ven lang=en -->
A diode lets the current go only one way.

```conllu
# sent_id = dict:school:diode:x1:1
# text = A diode lets the current go only one way.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	diode	diode	NOUN	NN	Number=Sing	3	nsubj	_	_
3	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	current	current	NOUN	NN	Number=Sing	6	nsubj	_	_
6	go	go	VERB	VB	VerbForm=Inf	3	xcomp	_	_
7	only	only	ADV	RB	_	8	advmod	_	_
8	one	one	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
9	way	way	NOUN	NN	Number=Sing	6	obl	_	SpaceAfter=No
10	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **let** | present | a diode |  |  |  |  |  | tree rules |
| 2 | **go** | infinitive | the current | one way |  |  |  |  | vn disappearance-48.2-1 «NP V»: agent=Theme |

## Example 2 {#x2}

<!-- .ven lang=en -->
We put the LED in the circuit backwards, so it did not light up.

<!-- fold The tree, 14 words -->
```conllu
# sent_id = dict:school:diode:x2:1
# text = We put the LED in the circuit backwards, so it did not light up.
1	We	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	2	nsubj	_	_
2	put	put	VERB	VBD	Mood=Ind|Number=Plur|Person=1|Tense=Past|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	LED	led	NOUN	NN	Number=Sing	2	obj	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	circuit	circuit	NOUN	NN	Number=Sing	2	obl	_	_
8	backwards	backwards	ADV	RB	_	2	advmod	_	SpaceAfter=No
9	,	,	PUNCT	,	_	14	punct	_	_
10	so	so	ADV	RB	_	14	advmod	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	nsubj	_	_
12	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	14	aux	_	_
13	not	not	PART	RB	Polarity=Neg	14	advmod	_	_
14	light	light	VERB	VB	VerbForm=Inf	2	advcl	_	_
15	up	up	ADP	RP	_	14	compound:prt	_	SpaceAfter=No
16	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **put** | past | We | the LED |  | the circuit |  | backwards *property* | vn put-9.1-2 «NP V NP PP.destination»: agent=Agent led=Theme in circuit=Destination |
| 2 | **not** **light up** | past · do-support | LED |  |  |  |  |  | vn preparing-26.3-1 «NP V NP»: agent=Agent |

## Example 3 {#x3}

<!-- .ven lang=en -->
Our torch uses tiny diodes instead of an old bulb.

```conllu
# sent_id = dict:school:diode:x3:1
# text = Our torch uses tiny diodes instead of an old bulb.
1	Our	our	PRON	PRP$	Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	torch	torch	NOUN	NN	Number=Sing	3	nsubj	_	_
3	uses	use	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	tiny	tiny	ADJ	JJ	Degree=Pos	5	amod	_	_
5	diodes	diode	NOUN	NNS	Number=Plur	3	obj	_	_
6	instead	instead	ADV	RB	ExtPos=ADP	10	case	_	_
7	of	of	ADP	IN	_	6	fixed	_	_
8	an	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	old	old	ADJ	JJ	Degree=Pos	10	amod	_	_
10	bulb	bulb	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
11	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use** | present | Our torch | tiny diodes |  |  |  | instead a old bulb | vn eat-39.1 «NP V NP»: agent=Agent diode=Patient |

## Example 4 {#x4}

<!-- .ven lang=en -->
The circuit diagram shows a diode as a triangle with a line.

```conllu
# sent_id = dict:school:diode:x4:1
# text = The circuit diagram shows a diode as a triangle with a line.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	circuit	circuit	NOUN	NN	Number=Sing	3	compound	_	_
3	diagram	diagram	NOUN	NN	Number=Sing	4	nsubj	_	_
4	shows	show	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	diode	diode	NOUN	NN	Number=Sing	4	obj	_	_
7	as	as	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	triangle	triangle	NOUN	NN	Number=Sing	4	obl	_	_
10	with	with	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	line	line	NOUN	NN	Number=Sing	9	nmod	_	SpaceAfter=No
13	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **show** | present | the circuit diagram | a diode |  |  |  | as a triangle with a line | vn transfer\_mesg-37.1.1-1-1 «NP V NP.recipient»: agent=Agent diode=Recipient |

## Example 5 {#x5}

<!-- .ven lang=en -->
LED stands for light-emitting diode.

```conllu
# sent_id = dict:school:diode:x5:1
# text = LED stands for light-emitting diode.
1	LED	lead	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	aux	_	_
2	stands	stand	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	for	for	SCONJ	IN	_	6	mark	_	_
4	light	light	NOUN	NN	Number=Sing	6	obl:unmarked	_	SpaceAfter=No
5	-	-	PUNCT	HYPH	_	4	punct	_	SpaceAfter=No
6	emitting	emit	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
7	diode	diode	NOUN	NN	Number=Sing	6	obj	_	SpaceAfter=No
8	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stand** | past |  |  |  |  |  |  | vn assuming\_position-50 «NP V»: agent=Agent |
| 2 | **emit** | gerund |  | light |  |  |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source diode=Theme |

## Example 6 {#x6}

<!-- .ven lang=en -->
The robot's eyes are two red diodes.

```conllu
# sent_id = dict:school:diode:x6:1
# text = The robot's eyes are two red diodes.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	robot	robot	NOUN	NN	Number=Sing	4	nmod:poss	_	SpaceAfter=No
3	's	's	PART	POS	_	2	case	_	_
4	eyes	eye	NOUN	NNS	Number=Plur	8	nsubj	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
6	two	two	NUM	CD	NumForm=Word|NumType=Card	8	nummod	_	_
7	red	red	ADJ	JJ	Degree=Pos	8	amod	_	_
8	diodes	diode	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
9	.	.	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | the robot's eyes | two red diodes |  |  |  |  | tree rules |

## Example 7 {#x7}

<!-- .ven lang=en -->
If the diode is turned round, the buzzer stops.

```conllu
# sent_id = dict:school:diode:x7:1
# text = If the diode is turned round, the buzzer stops.
1	If	if	SCONJ	IN	_	5	mark	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	diode	diode	NOUN	NN	Number=Sing	5	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux:pass	_	_
5	turned	turn	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	advcl	_	_
6	round	round	ADV	RB	_	5	advmod	_	SpaceAfter=No
7	,	,	PUNCT	,	_	5	punct	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	buzzer	buzzer	NOUN	NN	Number=Sing	10	nsubj	_	_
10	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	SpaceAfter=No
11	.	.	PUNCT	.	_	10	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn round** *a condition, not said to happen* | present · passive |  | the diode |  |  |  | round *property* | vn roll-51.3.1 «NP V NP.theme»: subject=Theme |
| 2 | **stop** | present | the buzzer |  |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |

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**Text:** the school dictionary of Mova's schools (`world/data/dictionary-schools/`), written for Mova. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each meaning and example read on its own. Elamur Cosmic License.

<!-- /div -->

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