The main difference between "advice" and "advise" is their part of speech and usage:

"Advice" is a noun that refers to an opinion or suggestion offered as guidance12. It's pronounced with an "s" sound at the end, rhyming with "ice"1. For example:

• "It is best to get legal advice from your lawyer before taking any legal action."1
• "We need expert advice on our complicated tax issues."3

"Advise" is a verb meaning to recommend, give counsel, or provide information to someone12. It's pronounced with a "z" sound at the end, rhyming with "realize"1. For example:

• "Mary advised me to stop taking the medicine, as it does more harm than good."1
• "The doctor advised Jim to quit smoking immediately."3

Some key points to remember:

1. "Advice" is uncountable, so you can't say "an advice" or "advices"2. Instead, use phrases like "a piece of advice" or "some advice."

2. "Please advise" is correct, while "please advice" is incorrect2. This phrase is often used at the end of emails to request a response.

3. Someone who gives advice professionally can be called an "adviser" or "advisor"2.

4. A helpful memory trick: "ice" in "advice" is a noun, like the frozen water, while the "ise" in "advise" is common for verbs3.

By keeping these distinctions in mind, you can use "advice" and "advise" correctly in your writing and speech.