Intuition and Tuition are easily confused words.
The spell-check application of most word processing software programs would not catch a slip-up of these two words. Spell-check is looking for words that aren’t in its dictionary, and words that resemble words in its dictionary but are possibly spelled wrong. Spell-check isn’t perfect. It doesn’t know and can’t guess what word you wanted or what word you meant, it can only judge the words on the page. If you used words that are all spelled correctly, it gives you a pass anyway.
Autocorrect suggests words that start with the same letters. It’s suggesting what word you may want to save time, but quite often, its suggestions are pretty off base. They don’t help you out, but they do make you laugh.
Intuition is a noun. It means awareness and knowledge a person possesses of a subconscious, or gut level.
Tuition is a noun. It means the admission fees paid to a private grammar school, or a public or private university. Figuratively, it can be used in the phrase “paying your tuition” a.k.a, “paying your dues,” which means learning from experience to get to where you really want to be in life.
The following story uses both words correctly:
Iphigenia’s intuition kept nagging her that she was forgetting something. Then she looked at the calendar. Of course! Her tuition for her first semester at college was due. That must be it.