spellchecker

noun
UK /ˈspel.tʃek.ər/
US /ˈspel.tʃek.ɚ/

A tool that finds and fixes spelling mistakes in writing.

I ran the spellchecker before sending my essay.


OTHER MEANINGS

2. A feature in a word processor that underlines misspelled words.

The spellchecker highlighted 'recieve' in red.

3. Software that suggests correct spellings as you type.

Her phone's spellchecker changed 'teh' to 'the'.

4. A person or program that checks spelling in a document.

The editor acted as a human spellchecker for the manuscript.