Verb (5-dan, く, intransitive)
Usually written in kana
1. to adhere to; to stick to; to cling to
引っ張ってみると、やっぱりくっついてた。When I tried pulling it, it was stuck after all.
2. to keep close to; to go along with
妹はどこへ行くにも私にくっついてくる。My little sister tags along with me wherever I go.
3. to get involved with; to be thick with; to become intimate
あの二人、ついにくっついたらしいよ。I heard those two finally got together.