The phrase "allow in" is a verb that means to let someone or something enter a place. When you allow someone in, you give them permission to go inside.
You might use "allow in" in more complex sentences or in different tenses:
While "allow in" primarily means to let someone enter, "allow" by itself can have broader meanings, such as:
Some synonyms for "allow in" include:
There aren't specific idioms that directly use "allow in," but it can be part of phrases like:
In summary, "allow in" is a useful phrase when you want to express the action of letting someone or something enter a place.