baulk-line vs balkline

baulk-line and balkline both are nouns.

Word	Noun	Adjective	Verb	Adverb
baulk-line	Yes	No	No	No
balkline	Yes	No	No	No

As nouns, baulk-line and balkline are synonyms defined as:

baulk-line and balkline: line across a billiard table behind which the cue balls are placed at the start of a game

Other synonyms of baulk-line include string line.

baulk-line (noun)	balkline (noun)
line across a billiard table behind which the cue balls are placed at the start of a game	line across a billiard table behind which the cue balls are placed at the start of a game