allow

The word “allow” means to give permission for something to happen. In plain terms, to let something happen, or to set something aside in advance for a purpose.

“Allow” is pronounced uh-LOW (/əˈlaʊ/ in IPA).

Here is “allow” used in a sentence: “The teacher allowed the students to leave early.”

The opposite of “allow” — its antonyms — are ban, forbid and prohibit.

“Allow” is a verb.

The word “allow” comes from Latin. From Anglo-Norman alouer, which blended two separate Latin roots — one meaning "to praise/approve" and one meaning "to place/assign" — giving English both the "permit" and "set aside" senses.

“Allow” is a very common word in modern English, usually learned at around the A2 level.

“Allow” has 4 distinct senses listed in this dictionary. The most common is: to give permission for something to happen.

Both mean to let something happen, and they often swap freely. 'Allow' is the everyday word and slightly more passive — not standing in the way. 'Permit' is more formal and active, suggesting official approval — 'permits are required.' You might allow a child to stay up late, but a council permits building work.

The main opposites are 'forbid,' 'prohibit,' and 'ban' — all meaning to refuse permission and stop something from happening. 'Allow' opens the door to an action; these close it. 'Prevent' and 'deny' also work, depending on context, when someone is stopped from doing what they wished.

'Allow' is neutral — comfortable in both casual speech and formal writing. 'Please allow me' sounds polite and everyday, while 'guests are not allowed inside' suits official notices. For a more formal tone, writers often reach for 'permit' or 'authorise,' but 'allow' fits almost any situation.