Joining two or more small words togther to make a new larger one is how compound words are made.
When compound words have spaces between them they are called open compound nouns: child care, work day, and time saver.
When compound words are joined with no space they are called closed compound words: skateboard, football and airport.
When compound words are joined by a hyphen they are called hyphenated compound words. well-respected (adjective), son-in-law (noun), and life-size (adjective).
Sometimes the same two words can be used to make different compounds:
Clean and up:
Noun: The oil spill cleanup was expensive.
Phrasal verb: We should clean up our room.
Full and time:
Noun: She worked the full time permitted.
Adjective: They all worked full-time.
Choose the correct compound word in the following sentences: