Dictionary.com
Thesaurus.com

it'll

American  
[it-l] / ˈɪt l /
  1. contraction of it will.


it'll British  
/ ˈɪtəl /

contraction

  1. it will or it shall

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

See contraction.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The longer it goes, the worse it’ll be.”

From The Wall Street Journal

I went over and he looked at the prototype, and said, “Why don’t you move this seam over the bum by a centimeter. I think it’ll be more flattering.”

From Los Angeles Times

"It'll sound strange but I believe more after this game than I believed before," said Tudor.

From BBC

“It’s not that none of this can work. There just seems to be an assumption that it’ll work well enough,” he said.

From The Wall Street Journal

But it'll be difficult to destroy all its weapons stockpiles.

From BBC