キャップ
Meanings
1
cap (hat); baseball cap
Refers to a brimmed hat, especially a baseball-style cap. Not used for formal hats or winter beanies.
He always wears a red cap.
2
cap (of a bottle, pen, etc.); lid
Used for small removable covers, such as bottle caps, pen caps, or lens caps. For larger lids or pot covers, ふた is more common.
I lost the cap of my pen.
Please close the bottle cap tightly.
Usage patterns
- キャップをかぶるto wear a cap
He put on his baseball cap and went outside.
- キャップを取るto take off a cap (from a bottle, pen, etc.)
I took the cap off the pen and started writing.
- キャップを閉めるto close/screw on a cap
Please close the bottle cap right after using it.