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Dictionary-enhanced word family

Word Forms of “Flat”

Something that is smooth and level, without bumps or slopes.

Word Family of Flat

What is the noun of flat? — flatness

flatness

What is the adjective of flat? — flat

flat

What is the adverb of flat? — flatly

flatly

How to Use Each Word Form in a Sentence

  • The table has a flat surface. A1
  • We walked on the flat ground in the park. A2
  • The architect designed a building with flat roofs. B1

Word Form Patterns for Flat

-ness

Adds **-ness** to make a noun meaning the state, quality, or condition of being something. Example: flat → flatness.

-ly

Adds **-ly** to make an adverb describing how an action happens. Example: flat → flatly.

Common Word Form Mistakes with Flat

Wrong: He speak in a flat voice.

Correct: He speaks in a flat voice.

Third person singular verb needs 's' with 'he'. 'Speak' becomes 'speaks'.

Frequently Asked Questions About Word Forms of Flat

What are the word forms of “flat”?

The confirmed forms are shown in the word family cards above. Missing parts of speech are hidden instead of filled with placeholder text.

What part of speech is “flat”?

“flat” is primarily a adj. Some forms above show how the same root works as other parts of speech.

Explore “Flat” in Other Tools