Compound nouns
Compound nouns are nouns made by putting two or more words together to act as one noun.
- Without spaces: policeman, seafood, sunrise, moonlight
- With spaces: swimming pool, washing machine, bottle opener
- With hyphens: mother-in-law, water bottle, six-pack, an ice-cream cone
Some common ways to form compound nouns.
noun + noun: housewife, wallpaper, seafood, toothbrush, bedroom
noun + adjective: handful, forceful, harmless
adjective + noun: blackboard, greenhouse, cellphone, highway
adjective + verb: dry-cleaning, public speaking
noun + verb: sunrise, haircut, waterfall, heartbeat, carwash
verb + noun: swimsuit, cookbook, breakfast, runway
preposition + noun downstairs, underpants, bystander
verb + preposition: check-in, check-out
