That is or has or have been used. / That has or have previously been owned by someone else. / Familiar through use; usual; accustomed.

pointless, useless; not worth doing, especially because it is not likely to succeed / (colloquial) No point or advantage.

(idiomatic, with noun phrase) Accustomed to, tolerant or accepting of.

(temporal location) Formerly and habitually or repeatedly, but possibly no longer, did.

present participle of use

use; utilization

Currently being used. / (archaic) Used; accustomed.

(colloquial, usually with a following present participle or infinitive expression) Used to indicate that the specified action cannot succeed or offers no advantage if successful

(colloquial, usually with a following present participle or infinitive expression) Used to indicate that the specified action cannot succeed or offers no advantage if successful

plural of using