A piece or slice: a small part cut from something (e.g., a slice of bread or meat).
パンを一切れください。
May I have a slice of bread, please?
ケーキを二切れ食べた。
I ate two pieces of cake.
肉を薄く切って、一切れずつ盛り付けた。
I sliced the meat thinly and plated it piece by piece.
Cloth or fabric: a piece of textile material (also written with characters like 布 or 裂).
古い切れ布で雑巾を作った。
I made a rag from old pieces of cloth.
服の切れをつなぎ合わせてパッチワークにした。
I joined pieces of fabric together to make a patchwork.
この切れは柔らかくて肌触りがいい。
This piece of fabric is soft and pleasant to the touch.
Sharpness or keenness: the sharpness of a blade or the crispness/impact of words or decisions.
この包丁は切れが良く、トマトも簡単に切れる。
This kitchen knife is very sharp and can easily slice a tomato.
彼女のプレゼンは切れがあり、聞き手を引きつけた。
Her presentation had sharpness and captivated the audience.
ナイフの切れが悪くなったら研いでください。
If the knife becomes dull, please sharpen it.
Agility or crispness of movement: quick, decisive, and efficient motion or reaction.
彼は試合中の切れが戻り、素早く相手をかわした。
His agility returned during the game, and he quickly evaded his opponent.
若い頃の切れが徐々になくなってきたと言う選手もいる。
Some athletes say the quickness they had when young gradually diminishes.
ダンスの振り付けに切れのある動きを取り入れた。
They incorporated sharp, crisp movements into the dance choreography.
A counter for slices or pieces (e.g., one slice, two slices).
チーズを三切れだけ取ってください。
Please take only three slices of cheese.
リンゴを四切れに切って、皆で分けた。
I cut the apple into four pieces and shared them with everyone.
一切れずつラップして冷凍しておくと便利だ。
It's convenient to wrap each slice individually and freeze them.