scrubbing

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the act of cleaning a surface by rubbing it with a brush and soap and water (Freq. 1)
• Syn:
scrub, scouring
• Derivationally related forms:
scour (for: scouring), scrub, scrub (for: scrub)
• Hypernyms:
cleaning, cleansing, cleanup
• Hyponyms:
swabbing, mopping