Meaning of “trace” - Learner’s Dictionary

trace

noun uk us /treɪs/
PROOF [ C, U ]

B2 proof that someone or something was in a place:

There was no trace of her anywhere.
Ships have disappeared without trace (= completely).
SMALL AMOUNT [ C ]

a small amount of something:

They found traces of blood on his clothing.

(Definition of “trace noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)