[*** \mathrm{batter}^1] |ˈbadər|

source: Kaguya-sama wa Kokurasetai: Tensai-tachi no Renai Zunousen Episode 7 Discussion (160 - ) - Forums - MyAnimeList.net

verb with object

strike repeatedly with hard blows; pound heavily and insistently:

〈人が〉 【物などで/場所に】〈人･物〉を続けざまにたたく; 打って壊す［つぶす］(down, away) «with/at, on, against»

e.g. a prisoner was battered to death with a table leg

e.g. figurative : their idealism has been battered.

(often as noun battering) subject (one's spouse, partner, or child) to repeated violence and assault.

〈人が〉(長期にわたり)〈配偶者･子供など〉を虐待する; 〈物〉を乱暴に扱う (!しばしば受け身で)

(usually as noun battering) censure, criticize, or defeat severely:

〈人･考えなど〉を酷評する

e.g. the movie took a battering from critics.

batterer noun

Middle English: from Old French batre ‘to beat’ (from Latin battuere) + -er3.

[*** \mathrm{batter}^2] |ˈbadər|

1. a semiliquid mixture of flour, egg, and milk or water used in cooking, especially for making cakes or for coating food before frying.

〘料〙 (揚げ物の)ころも

｟米｠ 〘料〙 (クッキー･ホットケーキなどの)ゆるい生地〘小麦粉･卵を牛乳や水で練った物〙

2. Printing a damaged area of metal type or a printing block.

〘印〙 (活字の)つぶれ, 磨滅, 磨損

late Middle English: from Old French bateure ‘the action of beating’, from batre ‘to beat’.

[*** \mathrm{batter}^3] |ˈbadər|

bat + -er

(in various sports, especially baseball) a player who is batting.

｟米｠ (野球の)バッター, 打者.

[*** \mathrm{batter}^4] |ˈbadər|

a gradual backward slope in a wall or similar structure.

verb no object

(of a wall) have a receding slope.

mid 16th century (as a verb): of unknown origin.