rain, rainfall / a rainy weather / (figuratively) something falling like rain

lowest of its kind, the worst

rain / (figuratively) something falling like rain / (figuratively) favor, blessing

rain

(idiomatic) to avoid being seen; to be clandestine

(Internet slang) avoiding search engines; making something difficult to reach via a search engine

the lower portion, end / lowness in degree or rank / the downstream portion of a river / the downriver area / the area farther from the capital / the last part of a month, year, etc.

the lower portion, base / under the influence of

down; below; beneath

under a situation