Verb (5-dan, ぐ, transitive)
1. to pour (into)
注いでよろしいですか？May I pour it?
2. to sprinkle on (from above); to water (e.g. plants); to pour onto; to spray
毎朝、庭の草花に水を注ぐ。Every morning I water the flowers in the garden.
3. to shed (tears)
as 涙を〜
人々は彼女の不幸に同情の涙を注いだ。People shed tears of sympathy for her misfortune.
4. to concentrate one's energy (strength, attention, etc.) on; to devote to; to fix (one's eyes) on
やがて、その視線はひとりの女の子に注がれる。Before long, that gaze was fixed on a single girl.
Verb (5-dan, ぐ, intransitive)
5. to flow into (e.g. of a river); to run into; to drain into
この川はやがて海に注ぐ。This river eventually flows into the sea.
6. to fall (of rain, snow); to pour down
冷たい雨が一晩中注いでいた。A cold rain poured down all night.