Having existed for a long time. / Having been done for long enough time to become convention.

Not fixed in any way to a surface. Relying solely on the force of gravity to stay in place / That stands alone, not supported at either side / independent, autonomous

plural of standing order

A rule of procedure adopted by a governing body for its own internal use. / A request made once for periodic fulfillment.

present participle of stand up

Enthusiastic applause given by people who rise from a sitting position.

plural of standing ovation

present participle of stand down

present participle of stand up to

present participle of stand out