Answer:

mopped

Answer	Crossword Clue
MOPPED	Swabbed
MOPPED	Cleaned the decks
MOPPED	Did a swab's job

MOPPED	Washed floors.
MOPPED	Disposed of, with "up"

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.