advice
She gave me some excellent advice on how to prepare for the interview.
She provided useful suggestions to help with interview preparation.
Guidance or recommendations offered to someone about what to do in a particular situation.
The doctor's advice was to rest and drink plenty of fluids.
The doctor recommended resting and increasing fluid intake.
He ignored his lawyer's advice and signed the contract.
He disregarded his lawyer's legal guidance and agreed to the contract.
Uncountable noun; do not use 'an advice' — use 'a piece of advice' or 'some advice'.
Collocations
Pro Tip
Avoid 'an advice'
Since 'advice' is uncountable, never say 'an advice'. Instead, use 'a piece of advice' or 'some advice'.
Gold Rule
Use 'advice' correctly in sentences
Correct: 'She gave me advice.' Incorrect: 'She gave me an advice.'
Word Origin
Middle English: from Old French *avise* (noun use of *aviser* 'consider, give consideration to'), based on Latin *advisare*, frequentative of *advisere* 'consider', from *ad-* 'to' + *videre* 'see'.
Usage Notes
Advice is typically uncountable. Use 'a piece of advice' for a single recommendation. In formal contexts, 'advice' can refer to professional guidance, such as legal or financial advice.