ETYM French piquet, properly dim. of pique spear, pike. Related to Pike, Piquet.
1. A detachment of troops guarding an army from surprise attack.
2. A protester posted by a labor organization outside a place of work.
3. A vehicle performing sentinel duty.
4. A wooden strip forming part of a fence; SYN. pale.

1. To fasten with a picket
2. To guard with a picket; to post as a picket
3. Tether
4. To post pickets at; to walk or stand in front of as a picket
5. To serve as a picket