Learner's definition of PARTICULARLY
2 — used to indicate someone or something that deserves special mention
I liked all the food, particularly [=especially] the dessert.
He's good at all his subjects and he's particularly good at math.
I am particularly pleased that you agreed to take the job.
The tools were useful, particularly the knife. [=the tools were useful, and the knife was the most useful of all; the knife, in particular, was useful]
: only a little : not very or not very much
He is not particularly good at math.
I did not particularly like the movie. [=I only liked the movie a little]
“Did you like the movie?” “No, not particularly.”