First off and Key

First off

First off adverb - Before anything else.
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Synonyms for First off

Key and first off are semantically related. In some cases you can use "Key" instead an adjective phrase "First off".

Key

Key adjective - Coming before all others in importance.

First off and key are semantically related. Sometimes you can use "First off" instead an adjective "Key".

Nearby Words: keyed, keyboard, keying
Cite this Source
Key and First off. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/first_off/key
First off & Key. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/first_off/key>.
Key or First off. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/first_off/key.
Google Ngram Viewer shows how "first off" and "key" have occurred on timeline