alter

verb1 of 2

to make a change to something

• “She has altered the way she does her hair.”Tatoeba
• “He's proposing a suggestion for altering the research method.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

(especially in the plural) An identity or headmate of a person with dissociative identity disorder (previously known as multiple personality disorder).