noun, adjectivethe thing which comes after the firstverbUsageto second a motionto be the first person to support a proposal put forward by someone else ExampleMrs Smith seconded the motion or The motion was seconded by Mrs Smith.to lend a member of staff to another company, organisation or department for a fixed period of time ExampleHe was seconded to the Department of Trade for two years. the thing which comes after the first to lend a member of staff to another company, organisation or department for a fixed period of time