- subtilize - mark fine distinctions and subtleties, as among words
--1 is one way to discriminate, know apart
Sample sentence:
Somebody ----s something
- rarefy, sublimate, subtilize - make more subtle or refined
--2 is one way to change, alter, modify
Sample sentence:
Somebody ----s something
- subtilize, subtilise - make (senses) more keen
--3 is one way to sharpen, heighten
Sample sentence:
Somebody ----s something
- rarefy, sublimate, subtilize - make more subtle or refined