"specialising" in the verb sense
1. specialize, specialise
devote oneself to a special area of work
"She specializes in honey bees"
"This baker specializes in French bread"
2. specify, particularize, particularise, specialize, specialise
be specific about
"Could you please specify your criticism of my paper?"
3. specialize, specialise
suit to a special purpose
"specialize one's research"
"this kind of beak has become specialized in certain Galapagos finches"
4. specialize, specialise, narrow, narrow down
become more focused on an area of activity or field of study
"She specializes in Near Eastern history"
5. speciate, differentiate, specialize, specialise
evolve so as to lead to a new species or develop in a way most suited to the environment
Source: WordNet® (An amazing lexical database of English)
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