analogies

what is this called?
blue: sky :: green: grass

Do you mean collocation?

http://www.usingenglish.com/glossary/collocation.html

;-)

Quote:

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Originally Posted by needhelp

what is this called?
blue: sky :: green: grass

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You gave the answer in the title. The symbols mean blue is to sky as green is to grass,

I see now- I didn't see the pattern of the dashes. Oooops. ;-(