busy 4 Associations

engaged in use occupied (similar term)

engaged 7 Associations

busy in use occupied (similar term)

in use 6 Associations

busy engaged occupied (similar term)

in use 6 Associations

used (similar term)

occupied 8 Associations

busy (similar term) engaged (similar term) in use (similar term) filled (similar term) unoccupied (antonym)

used 4 Associations

in use (similar term) utilized (similar term) utilised (similar term) misused (antonym)