1
2
to go to bed;to lie in bed
寝る前に歯を磨きなさい。
Brush your teeth before going to bed.
3
to lie down
少年は春の日差しを浴びて仰向けに寝ていた。
The boy lay on his back, basking in the spring sunshine.
4
to sleep (with someone, i.e. have intercourse)
5
to lie flat (e.g. of hair)
6
to lie idle (of funds, stock, etc.)
7
to ferment (of soy sauce, miso, etc.)
Other forms
寐る 【ねる】 (rarely used kanji form)