• busy; occupied

Synonyms: busy, unavailable, occupied

• having formally agreed to marry

Synonyms: betrothed, affianced, promised in marriage

• (of a column) attached to or partly let into a wall

• occupy or attract (someone's interest or attention)

Synonyms: capture, catch, arrest, grab, seize, draw, attract, gain, win, captivate, hold, grip, engross, absorb, occupy

• participate or become involved in

Synonyms: participate in, take part in, join in, become involved in, go in for, partake in/of, occupy oneself with, throw oneself into

• arrange to employ or hire (someone)

Synonyms: employ, hire, recruit, take on, take into employment, secure the services of, put on the payroll, enrol, appoint, commission, enlist

• (with reference to a part of a machine or engine) move into position so as to come into operation

Synonyms: interlock, interconnect, mesh, intermesh, fit together, join together, join, unite, connect, yoke, mate, couple

• (of fencers or swordsmen) bring (weapons) together preparatory to fighting