[uncountable] money, food, etc. that is sent to help countries in difficult situations. humanitarian/food/medical aid; An extra £10 million in foreign aid ...

1[uncountable] money, food, etc. that is sent to help countries in difficult situations economic/humanitarian/emergency aid An extra $10 million in foreign aid ...

aid · ​. to help somebody/something to do something, especially by making it easier synonym assist. aid in something The test is designed to aid in the diagnosis ...

to help someone or something to do something, especially by making it easier. synonym assist aid in something/in doing something.

A financial contribution made or levied to provide assistance, esp. to a lord, sovereign, etc.; a subsidy.

There are three meanings listed in OED's entry for the verb aid. See 'Meaning & use' for definitions, usage, and quotation evidence.

simple medical treatment that is given to somebody before a doctor comes or before the person can be taken to a hospital

​an organization that helps people or countries in difficult situations by providing food, medicine, etc. They work for an international aid agency ...

AID definition: 1. a piece of equipment that helps you to do something: 2. using something to help you: 3. help…. Learn more.

the abbreviation for'Acquired Immune Deficiency Syndrome'(a very serious illness that attacks the body's ability to resist infection)