Block (�), v. t. [imp. & p. p.Blocked (�); p. pr. & vb. n.Blocking.] [Cf. F. bloquer, fr. bloc block. See Block, n.] 1. To obstruct so as to prevent passage or progress; to prevent passage from, through, or into, by obstructing the way; — used both of persons and things; — often followed by up; as, to block up a road or harbor.
With moles... would block the port.
Rowe.
A city... besieged and blocked about.
Milton.
2. To secure or support by means of blocks; to secure, as two boards at their angles of intersection, by pieces of wood glued to each.
3. To shape on, or stamp with, a block; as, to block a hat.
To block out, to begin to reduce to shape; to mark out roughly; to lay out; as, to block out a plan.