Block \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.

Source: Webster's Revised Unabridged Dictionary (1913)