Lewis

biographical name

Matthew Gregory 1775–1818 Monk Lewis English author

Browse Nearby Words

Lewes

lewis

Lewis

See all Nearby Words

Cite this Entry

Style

“Lewis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Lewis. Accessed 10 Jun. 2026.

Copy Citation

Medical Definition

Lewis

adjective

Lew·is ˈlü-əs

: of or relating to the Lewis blood groups

Lewis antigens

Popular in Grammar & Usage

Every Letter Is Silent, Sometimes: A-Z List of Examples

5 Verbal Slip Ups and Language Mistakes

Regarding the Incorrect Use of 'Decimate'

Is that lie 'bald-faced' or 'bold-faced'?

The Difference Between 'i.e.' and 'e.g.'

Popular in Wordplay

Lewis

biographical name

Browse Nearby Words

Cite this Entry

Medical Definition

More from Merriam-Webster

Word of the Day

foible

Popular in Grammar & Usage

Every Letter Is Silent, Sometimes: A-Z List of Examples

5 Verbal Slip Ups and Language Mistakes

Regarding the Incorrect Use of 'Decimate'

Is that lie 'bald-faced' or 'bold-faced'?

The Difference Between 'i.e.' and 'e.g.'

Popular in Wordplay

What to Call the Inept, Incompetent, and Inferior

Strange Words for Body Functions

Where does 'curiosity killed the cat' come from?

Cattywampus, Taradiddle, and More Funny-Sounding Words

Is “GIF” Pronounced “Jiff” or “Giff”?

Popular

Every Letter Is Silent, Sometimes: A-Z List of Examples

What to Call the Inept, Incompetent, and Inferior

Strange Words for Body Functions

Games & Quizzes