Definition of "whom" []

• The objective case of who. See Usage Note at who. (pronoun)

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.

• "In analyzing the “whom” sentence I pointed out that the rhetorical emphasis natural to an interrogative pronoun lost something by its form variability (who, whose, whom)."
• "'No, no,' exclaimed the dying Principal, 'it is not "I know _in_ whom" but "I know _whom_"; I cannot have even the little word "_in_" between me and Christ."
• "Be it so: you cannot be too noble, and your train cannot be too great; but see to it that your train is of vassals whom you serve and feed, not merely of slaves who serve and feed you; and that the multitude which obeys you is of those whom you have comforted, not oppressed, —whom you have redeemed, not led into captivity."