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Showing results for marker.
Definitions

marker

[mahr-ker] / ˈmɑr kər /
NOUN
a writing instrument
Synonyms
WEAK
broad tip pen colored pen felt tip pen marking pen
NOUN
something that marks
Synonyms
STRONGEST
flag gravestone indicator pole stone tombstone
STRONG
arrow counter guide monitor notch peg rag recorder scorer signal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Ideaya’s treatment targets an aggressive form of uveal melanoma that generally has a poor prognosis because it occurs in patients who lack the genetic marker to receive typical immunotherapy.

From Barron's • Apr. 13, 2026

The cease-fire reached between the U.S. and Iran on Tuesday night offer a marker to show what has, and what has not, shifted in global financial markets.

From MarketWatch • Apr. 8, 2026

The cease-fire reached between the U.S. and Iran on Tuesday night presents a marker showing how things have shifted in global financial markets.

From The Wall Street Journal • Apr. 8, 2026

The adoptee said she would also like people like her to have a marker on their medical records because having to repeat her background to medical professionals "is very, very triggering".

From BBC • Mar. 27, 2026

I made signs, posters, and notices in paint, marker, and crayon.

From "Ida B" by Katherine Hannigan