baulk vs Australian spelling

baulk and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
baulk	Yes	No	Yes	No
Australian spelling	Yes	No	No	No

baulk (noun)	Australian spelling (noun)
one of several parallel sloping beams that support a roof	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
something immaterial that interferes with or delays action or progress
the area on a billiard table behind the balkline

baulk (verb)	Australian spelling (verb)
refuse to comply