verb - to apply something to hair to make it shiny or smooth
noun - a thin, often shiny layer of a slippery substance, like oil or grease
adjective - efficient or well-executed, often in a stylish way
adjective - skillful or impressive but often in a way that lacks sincerity
verb, technical - to become ill again or experience the return of a negative state
noun, American English - a wooden box where a dead body is put