Meanings
Verb (5-dan, く, intransitive)
1. to go to bed; to go to sleep; to fall asleep
2. to be laid up (with a cold); to be ill in bed
Kanji used
lie down
attach
Pitch accent
Top 17800
Composed of
sleep
to be attached; to be connected with; to remain imprinted; to scar; to bear (fruit, interest, etc.); to be acquired (of a habit, ability, etc.); to increase (of strength, etc.)
Examples (4 in total)
I wasn't yet asleep at that time.
I was so excited that I couldn't fall asleep.
I'm tired, but I still can't fall asleep.
I've had a lot on my mind recently and have had trouble falling asleep at night.