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# peen

«peen» in Mova's school dictionary: **The rounded or wedge-shaped end of a hammer head…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (a peen, peens); verb (peen, peens, peened, peening)

### meaning for a pupil

1) The rounded or wedge-shaped end of a hammer head, opposite the flat striking face (as in ball-peen hammer). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#m1)

2) (verb) To hit metal with a hammer to shape or harden it. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#m2)

### sense in the lessons

A design-and-technology and workshop word: a ball-peen hammer is used for metalwork and shaping rivets. Metalworkers «peen» metal to bend or harden it. Rare in everyday talk.

### examples

- A ball-peen hammer has a round end for shaping metal. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x1)
- Use the peen of the hammer to round off the rivet. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x2)
- The blacksmith peened the edge of the blade. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x3)
- Dad keeps a ball-peen hammer in his toolbox. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x4)
- In DT we watched a teacher peen a copper bowl. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x5)
- The peen is on the opposite side to the flat face. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/#x6)

### note

Countable noun and regular verb. Also spelled «pein» or «pane» in older British use. Safety: wear goggles when hammering metal.

### Trees and pragmatics

[Every meaning and example of «peen» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/peen/), each sentence with its dependency tree and frames.