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pertain to (someone or something)
To relate to, be relevant to, or have a connection with someone or something. These meetings never pertain to me, but the boss wants me to be there anyway. It was a bizarre scene that didn't seem to pertain to the rest of the film as a whole.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
pertain to someone or something
to relate to someone or something; to have something to do with someone or something. I don't think that anything discussed in this meeting pertained to me. It really doesn't pertain to the matter at hand.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
To be relevant to or concerned with something: In chemistry the word "basic" pertains to substances with a pH factor greater than 7.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.