Convict and convince 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.
Convict (pronounced “kuhn-VIHKT”) is a verb. It means to formally charge an accused person with breaking law or laws, and issuing an appropriate sentence or punishment.
Since we’re on the topic, a related noun is convict (pronounced “KAWN-vihkt”.) This means a person who has been convicted and is currently serving a sentence in jail. Examples in pop culture include Jean Valjean, the lead character in Les Miserables, a book by Victor Hugo that has been made into movies and a popular stage musical. Another pop culture example is Dr. Shepard, the lead in The Fugitive.
Notice the verb convict accentuates the second syllable, while the noun accentuates the first syllable.
Convince (pronounced “kuhn-vihnss”) is a verb. It means to talk someone else into your point of view on an issue, or to buy your product or service.
The following story uses both words correctly:
Connor wasn’t sure he would effectively convince the jury that the accused killer, Hollywood hearthrob Craig Childress, should be convicted for killing his partner. But he was trying as hard as he did with any other case. The law doesn’t care about looks, social status, or career success. If you committed murder, you deserve punishment for that crime.