compound words

Joined word pairs

Compound words are formed by joining two or more existing words to create a new term with its own meaning.

They appear in three forms: closed compounds written as single words bookshelf, sunflower, hyphenated compounds mother-in-law, well-being, and open compounds written as separate words ice cream, real estate.

The conventions for which form to use are inconsistent and evolve over time, with many compounds progressing from open to hyphenated to closed as they become more established in the language.

Opposites
word structure/morphological complexity

compound wordssimple words

root words · primitives

lexical formation process

compound wordssimple words

loanwords · borrowings · blends · acronyms · initialisms

Family

word, compound, compounds, compounded, compounding, compound word, compounder, compounders

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Rated G