Meaning of “trace” - Learner’s Dictionary

trace

verb [ T ] uk us /treɪs/
FIND

to find someone or something that was lost:

Police have so far failed to trace the missing woman.
ORIGIN

to find the origin of something:

She's traced her family back to the sixteenth century.
They were able to trace the call (= find out the number of the telephone used).
DEVELOPMENT

to describe the way something has developed over time:

The book traces the development of women's art since the start of the century.
COPY

to copy a picture by putting transparent paper on top and following the outer line of the picture with a pen:

tracing paper

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