n. 25B6; noun
a block of cheese : CHUNK, hunk, lump, wedge, cube, brick, slab, piece; Brit. informal wodge.
an apartment block : BUILDING, complex, structure, development.
a block of shares : BATCH, group, set, quantity.
a sketching block : PAD, notepad, sketchpad, jotter, tablet.
a block to Third World development : OBSTACLE, bar, barrier, impediment, hindrance, check, hurdle, stumbling block, handicap, deterrent.
a block in the pipe : BLOCKAGE, obstruction, stoppage, congestion, occlusion, clot.
aid.
25B6; verb
weeds can block drainage ditches : CLOG (UP), stop up, choke, plug, obstruct, gum up, dam up, bung up, congest, jam, close; Brit. informal gunge up; technical occlude.
picket lines blocked access to the factory : HINDER, hamper, obstruct, impede, inhibit, restrict, limit; halt, stop, bar, check, prevent.
he blocked a shot on the goal line : PARRY, stop, deflect, fend off, hold off, repel, repulse.
facilitate.
25A0; block something off CLOSE UP, shut off, seal off, barricade, bar, obstruct.
25A0; block something out
trees blocked out the light : CONCEAL, keep out, blot out, exclude, obliterate, blank out, stop.
block out an area in charcoal : ROUGH OUT, sketch out, outline, delineate, draft.