1 : the gear that has the second lowest forward gear ratio in the gear box of a motor vehicle; "he had to shift down into second to make the hill"
2 : 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites
3 : merchandise that has imperfections; usually sold at a reduced price without the brand name
1 : transfer an employee to a different, temporary assignment
1 : a part or voice or instrument or orchestra section lower in pitch than or subordinate to the first