English definition of “will”
strong /wɪl/ weak /wəl/, /əl/ modal verb
FUTURE › used to talk about what is going to happen in the future, especially things that you are certain about: Claire will be five next month. I'll see him on Saturday. She'll have a great time.
ABLE/WILLING › used to talk about what someone or something is willing or able to do: Ask Susie if she'll take them. I've asked her but she won't come. The car won't start.
ASK › used to ask someone to do something or to politely offer something to someone: Will you give me her address? Will you have a drink with us, Phil?
IF › used in conditional sentences that start with 'if' and use the present tense: If he's late again I'll be very angry.
HAPPENING OFTEN › used to talk about something that often happens, especially something annoying: Accidents will happen. He will keep talking when I'm trying to concentrate.
it/that will be mainly UK › used to talk about what is probably true: That will be Helen at the front door. That will be his mother with him.