---
title: diffusion — school dictionary · trees and pragmatics
description: «diffusion» in the school dictionary: Diffusion is the spreading of something far and wide, such as ideas, customs or stories, from one place to many others. Every meaning for a pupil with its dependency tree and pragmatics.
---

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# diffusion

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**Who acts:** Diffusion, science diffusion, Perfume · **What happens:** be, take, diffuse, spread · **To what, where:** spreading, slow spreading, space, tale, air, folk tale

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«diffusion» in the school dictionary: its 2 meanings for a pupil and its 3 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: [diffusion in the school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/w/diffusion.md).

## Meaning 1 {#m1}

<!-- .ven lang=en -->
Diffusion is the spreading of something far and wide, such as ideas, customs or stories, from one place to many others.

<!-- fold The tree, 21 words -->
```conllu
# sent_id = dict:school:diffusion:m1:1
# text = Diffusion is the spreading of something far and wide, such as ideas, customs or stories, from one place to many others.
1	Diffusion	diffusion	NOUN	NN	Number=Sing	4	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	spreading	spreading	NOUN	NN	Number=Sing	0	root	_	_
5	of	of	ADP	IN	_	6	case	_	_
6	something	something	PRON	NN	Number=Sing|PronType=Ind	4	nmod	_	_
7	far	far	ADV	RB	Degree=Pos	6	advmod	_	_
8	and	and	CCONJ	CC	_	13	cc	_	_
9	wide	wide	ADJ	JJ	Degree=Pos	13	amod	_	SpaceAfter=No
10	,	,	PUNCT	,	_	13	punct	_	_
11	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	13	case	_	_
12	as	as	ADP	IN	_	11	fixed	_	_
13	ideas	idea	NOUN	NNS	Number=Plur	6	conj	_	SpaceAfter=No
14	,	,	PUNCT	,	_	15	punct	_	_
15	customs	custom	NOUN	NNS	Number=Plur	13	conj	_	_
16	or	or	CCONJ	CC	_	17	cc	_	_
17	stories	story	NOUN	NNS	Number=Plur	13	conj	_	SpaceAfter=No
18	,	,	PUNCT	,	_	21	punct	_	_
19	from	from	ADP	IN	_	21	case	_	_
20	one	one	NUM	CD	NumForm=Word|NumType=Card	21	nummod	_	_
21	place	place	NOUN	NN	Number=Sing	4	conj	_	_
22	to	to	ADP	IN	_	24	case	_	_
23	many	many	ADJ	JJ	Degree=Pos	24	amod	_	_
24	others	other	NOUN	NNS	Number=Plur	21	nmod	_	SpaceAfter=No
25	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Diffusion | the spreading and one place to many others |  |  |  | of something | tree rules |

<!-- .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 -->
In science, diffusion is the slow spreading of a gas or liquid into the space around it.

<!-- fold The tree, 17 words -->
```conllu
# sent_id = dict:school:diffusion:m2:1
# text = In science, diffusion is the slow spreading of a gas or liquid into the space around it.
1	In	in	ADP	IN	_	2	case	_	_
2	science	science	NOUN	NN	Number=Sing	4	compound	_	SpaceAfter=No
3	,	,	PUNCT	,	_	2	punct	_	_
4	diffusion	diffusion	NOUN	NN	Number=Sing	8	nsubj	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	slow	slow	ADJ	JJ	Degree=Pos	8	amod	_	_
8	spreading	spreading	NOUN	NN	Number=Sing	0	root	_	_
9	of	of	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	gas	gas	NOUN	NN	Number=Sing	8	nmod	_	_
12	or	or	CCONJ	CC	_	13	cc	_	_
13	liquid	liquid	NOUN	NN	Number=Sing	11	conj	_	_
14	into	into	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	space	space	NOUN	NN	Number=Sing	8	nmod	_	_
17	around	around	ADP	IN	_	18	case	_	_
18	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	16	nmod	_	SpaceAfter=No
19	.	.	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | science diffusion | the slow spreading |  | the space around space |  | of a gas or liquid | tree rules |

## Example 1 {#x1}

<!-- .ven lang=en -->
The diffusion of the tale took many years.

```conllu
# sent_id = dict:school:diffusion:x1:1
# text = The diffusion of the tale took many years.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	diffusion	diffusion	NOUN	NN	Number=Sing	6	nsubj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	tale	tale	NOUN	NN	Number=Sing	2	nmod	_	_
6	took	take	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
7	many	many	ADJ	JJ	Degree=Pos	8	amod	_	_
8	years	year	NOUN	NNS	Number=Plur	6	obj	_	SpaceAfter=No
9	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **take** | past | the diffusion of the tale |  |  |  | year |  | vn bring-11.3 «NP V NP»: agent=Agent |
| 2 | **diffuse** |  |  | the tale |  |  |  |  | nom diffusion «process transitive»: of=patient |

## Example 2 {#x2}

<!-- .ven lang=en -->
Perfume spreads by diffusion through the air.

```conllu
# sent_id = dict:school:diffusion:x2:1
# text = Perfume spreads by diffusion through the air.
1	Perfume	perfume	NOUN	NN	Number=Sing	2	nsubj	_	_
2	spreads	spread	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	by	by	ADP	IN	_	4	case	_	_
4	diffusion	diffusion	NOUN	NN	Number=Sing	2	obl	_	_
5	through	through	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	air	air	NOUN	NN	Number=Sing	2	obl	_	SpaceAfter=No
8	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **spread** | present | Perfume |  |  | the air |  | by diffusion | vn appear-48.1.1 «NP V PP.location»: agent=Theme by diffusion=Location |

## Example 3 {#x3}

<!-- .ven lang=en -->
The folk-tale spread by diffusion from India to Spain.

```conllu
# sent_id = dict:school:diffusion:x3:1
# text = The folk-tale spread by diffusion from India to Spain.
1	The	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
2	folk	folk	NOUN	NN	Number=Sing	4	compound	_	SpaceAfter=No
3	-	-	PUNCT	HYPH	_	2	punct	_	SpaceAfter=No
4	tale	tale	NOUN	NN	Number=Sing	0	root	_	_
5	spread	spread	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
6	by	by	ADP	IN	_	7	case	_	_
7	diffusion	diffusion	NOUN	NN	Number=Sing	5	obl	_	_
8	from	from	ADP	IN	_	9	case	_	_
9	India	India	PROPN	NNP	Number=Sing	5	obl	_	_
10	to	to	ADP	IN	_	11	case	_	_
11	Spain	Spain	PROPN	NNP	Number=Sing	5	obl	_	SpaceAfter=No
12	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **spread** | participle |  | the folk tale *not said here* | Spain | India |  | by diffusion | vn appear-48.1.1 «NP V PP.location»: agent=Theme by diffusion=Location |

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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.

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