adj Firm in standing or position; not tottering or shaking; fixed; firm.
adj Constant in feeling, purpose, or pursuit; not fickle, changeable, or wavering; not easily moved or persuaded to alter a purpose; resolute.
adj Smooth and not bumpy or with obstructions.
adj Regular and even.
adj Slow.
v (transitive, sometimes figurative) To stabilize; to prevent from shaking.
v (intransitive) To become stable.
n A rest or support, as for the hand, a tool, or a piece of work.
n (informal) A regular boyfriend or girlfriend.
n (informal) A prostitute's regular customer.
adv (rowing, informal) To row with pressure at a low stroke-rating, often 18 strokes per minute.