The part of speech that substitutes for nouns or noun phrases and designates persons or things asked for, previously specified, or understood from the context.
Any of the words within this part of speech, such as he or whom.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.