Nouns

(n)balk, baulkthe area on a billiard table behind the balkline“a player with ball in hand must play from the balk”
(n)hindrance, hinderance, deterrent, impediment, balk, baulk, check, handicapsomething immaterial that interferes with or delays action or progress
(n)rafter, balk, baulkone of several parallel sloping beams that support a roof
(n)balkan illegal pitching motion while runners are on base

Verbs

(v)resist, balk, baulk, jibrefuse to comply