n.
Function: transitive verb
Date: 1745
1 : to enclose, fence, or fortify with pickets
2 a : to guard with a picket b : to post as a picket
3 : TETHER
4 a : to post pickets at b : to walk or stand in front of as a picket
intransitive verb : to serve as a picket
– pick · et · er noun