change, alter, vary, modify mean to make or become different. change implies making either an essential difference often amounting to a loss of original identity or a substitution of one thing for …

ALTER definition: 1. to change something, usually slightly, or to cause the characteristics of something to change…. Learn more.

After eating too many gingerbread cookies, she no longer fit into her uniform, so she had a seamstress alter it. It looked pretty much the same. The verb alter can also mean to neuter or spay.

(to cause to) be different or modified in some way, as size, style, course, or the like: [~ + object] to alter a coat. [no object] Her schedule has altered drastically.

Alter definition: To change or make different; modify.

To change entirely or materially; convert into another form or state: as, to alter a cloak into a coat; to alter an opinion. To castrate, emasculate, or spay, as an animal.

To alter is to change or modify something, often in a significant manner. This change can be physical, such as altering a piece of clothing to fit better, or abstract, such as altering an opinion or a plan.

ALTER definition: to make different in some particular, as size, style, course, or the like; modify. See examples of alter used in a sentence.

Alcohol can alter a person's mood. He altered his will to leave everything to his sister. This one small event altered the course of history.

If something alters or if you alter it, it changes. Nothing has altered and the deadline still stands.