Style Manual
General Usage Questions
C12. Correct Spelling/Usage:
Compound Nouns with Differing Verb Forms
- backup (noun & modifier); back up (verb)
- blastoff, liftoff (noun); blast off, lift off (verb)
- break-in (noun); break in (verb)
- breakup (noun); break up (verb)
- cleanup (noun & modifier); clean up (verb)
- crackup (noun & modifier); crack up (verb)
- crossover (noun & modifier); cross over (verb)
- cutoff (noun & modifier); cut off (verb)
- dropout (noun and modifier); drop out (verb)
- flare-up (noun); flare up (verb)
- follow-up (noun & modifier); follow up (verb)
- frameup (noun); frame up (verb)
- mix-up (noun); mix up (verb)
- mop-up (noun & modifier); mop-up (verb)
- pileup (noun); pile up (verb)
- pullback, pullout (noun & modifier); pull back, pull
out (verb)
- push-up (noun & modifier); push up (verb)
- ripoff (noun & modifier); rip off (verb)
- roundup (noun); round up (verb)
- send-off (noun & modifier); send off (verb)
- set-up (noun & modifier); set up (verb)
- shake-up (noun & modifier); shake up (verb)
- shutdown, shutoff (noun & modifier); shut down, shut
off (verb)
- shutout (noun & modifier); shut out (verb)
- sit-in (noun); sit in (verb)
- smashup (noun & modifier); smash up (verb)
- speedup (noun); speed up (verb)
- stand-in (noun & modifier); stand in (verb)
- standout (noun & modifier); stand out (verb)
- standoff (noun); stand off (verb)
- takeout (noun & modifier); take out (verb)
- takeover (noun & modifier); take over (verb)
- takeup (noun & modifier); take up (verb)
- tie-in (noun); tie in (verb)
- tie-up (noun); tie up (verb)
- trade-in (noun & modifier); trade in (verb)
- tradeoff (noun); trade off (verb)
- tuneup (noun); tune up (verb)
- walkout (noun & modifier); walk out (verb)
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