Verb (5-dan, ぐ, transitive)
1. to pour (into)
2. to sprinkle on (from above); to water (e.g. plants); to pour onto; to spray
3. to shed (tears)
4. to concentrate one's energy (strength, attention, etc.) on; to devote to; to fix (one's eyes) on
Verb (5-dan, ぐ, intransitive)
5. to flow into (e.g. of a river); to run into; to drain into
6. to fall (of rain, snow); to pour down