specialize
specialize
verb (specializes, specialized, specialized, specializing)
/ˈspeʃəlaɪz/
(British English also specialise)
intransitive
to become an expert in a particular area of work, study or business; to spend more time on one area of work, etc. than on others
Many students prefer not to specialize too soon.
specialize in something He specialized in criminal law.
The shop specializes in hand-made chocolates.
Word Origin
early 17th cent.: from French spécialiser, from spécial ‘special’.