ADVICE vs. ADVISE
Advise is a verb meaning “to give counsel to; offer an opinion or suggestion as worth following.” Advice is a noun meaning “an opinion or recommendation offered as a guide to action, conduct, etc.” The -ice ending of advice is pronounced like “ice,” while the -ise ending of advise is pronounced like the “-ize” in “realize.”
Meanwhile, in American English, the word practice doubles as both a noun and a verb. While the absence of a second spelling might lead you to believe American English prefers the -ce ending, English speakers in the United States use defense and offense where the British use defence and offence. Thankfully, regardless of the variety of English you’re dealing with, advice is always a noun and advise is always a verb.
Clancy' comment: I bet you are glad I posted these two words.