›the male being spoken about; the reflexive form of he: He bought himself a new coat.›Himself is sometimes used to emphasize a male subject or object of a sentence: I got to meet the president himself.›Himself is also used to refer to a person whose sex is not known: I hope nobody’s hurt himself.Note: Some people find this use of him to be offensive.(all) by himself›If a man or boy does something (all) by himself, he does it alone or without help from anyone else: Jamie made that snowman all by himself.not himself›If a man or boy is not himself, he is not in his usual mental or physical condition: Hugh hasn’t been himself since the accident.(all) to himself›If a man or boy has something (all) to himself, he has it for his own use only: He’s got the house to himself tonight.