Every Monday, the letters arrive in a single bundle, tied with string. They are addressed to “Dear Abby” — or to whatever name the advice column carries in your local paper — and they all ask the same thing in different words: tell me what to do. One reader writes, “I need some good advice about my job.” Another writes, “Please advise me on what to say to my sister.” Both readers want help. Only one of them spells the word the way a noun should be spelled, and the other spells it the way a verb should be spelled. The letters are identical in spirit and one letter apart in spelling — and the difference is the whole difference between a thing and an action.
Advice is a noun: the guidance itself, the thing you give or receive. Advise is a verb: the act of giving it. You advise someone; you give them advice. The two words sound nearly identical in fast speech, they share a root, and they swap a single letter in the middle — C for the noun, S for the verb. Once you see the pattern, the column’s mailbag stops being confusing, and the rule starts doing the work for you.
The Inbox: Two Letters, One Problem
Read the first letter. “Dear Abby, I need some good advice about my job. My boss wants me to move to another city, and I don’t know whether to go.” The word advice sits in the sentence the way a noun sits: after “some,” in the slot where a thing belongs. You could replace it with another noun — “some good guidance,” “some good information” — and the sentence would still stand. That is the noun test: if the word names a thing you can give, take, follow, or ignore, it is advice.
Now the second letter. “Dear Abby, please advise me on what to say to my sister. We had a fight, and I want to make it right.” Here advise is doing something. It is the action the reader is asking the columnist to perform. You could replace it with another verb — “please help me,” “please tell me” — and the sentence would still stand. That is the verb test: if the word describes an action someone performs, it is advise.
Notice that the two letters are asking for the same thing. The first asks for the product; the second asks for the process. English keeps the two jobs apart with a single letter, and the columnist’s inbox is where the distinction does its daily work.
Advice, the Noun: The Thing You Give
Advice is an uncountable noun, which means it has no plural. You do not give “two advices.” You give “two pieces of advice,” or “some advice,” or “a bit of advice.” This is one of the word’s most useful fingerprints: if you find yourself reaching for a plural, you have the noun, and the noun never takes an S at the end.
The word travels with a small set of verbs that describe what people do with guidance. You give advice, take advice, follow advice, seek advice, offer advice, ignore advice. Each of these pairings treats advice as a thing that moves from one person to another — a package handed across the table. “Her advice saved the project.” “I took his advice and called the client.” “They ignored the doctor’s advice.” In every case, advice is the object, the thing being handled.
It also pairs with adjectives that describe its quality. Good advice, bad advice, sound advice, solid advice, wise advice, practical advice, legal advice, medical advice, financial advice. The adjective tells you what kind of guidance it is; the noun tells you it is guidance at all. And there is one famous fixed phrase every English speaker should know: “a word of advice” — a short, pointed piece of guidance, usually offered before someone makes a mistake.
The word’s root explains its shape. Advice comes from the Old French avis, meaning opinion or view — literally “what seems” (from Latin ad + visum, “seen”). The C in the middle is a French inheritance, a letter that kept the noun’s spelling distinct from its verb twin even as the two words drifted together in sound.
Advise, the Verb: The Act of Giving
Advise is a verb, and like all verbs it takes subjects, objects, and tenses. “I advise you to wait.” “She advised him against signing.” “The lawyer advises the company on contracts.” “They will advise the committee next week.” The verb always has someone doing the advising and someone — or something — receiving it. That is the verb’s grammar: it needs an actor.
The verb has its own set of companions. You advise someone to do something: “I advise you to call first.” You advise someone against something: “She advised him against quitting.” You advise on a topic: “He advises on tax policy.” And in formal or legal writing, you advise that something is the case: “We advise that the meeting be postponed.” The prepositions — to, against, on, that — are the verb’s signature. The noun never takes them.
The verb also changes form the way verbs do. Advise, advises, advised, advising. “The consultant advises clients.” “She advised me last year.” “They are advising the board.” The noun, by contrast, never changes: advice is advice in every tense, because nouns do not have tenses. If the word in your sentence is wearing a tense — past, present, future — it is the verb.
Pronunciation gives a second clue. In most varieties of English, advice ends with an S sound (ad-VICE), while advise ends with a Z sound (ad-VIZE). The spelling difference and the sound difference agree: the noun hisses, the verb buzzes. In fast speech the distinction can blur, but in careful speech it is there, and it is a reliable guide when you are reading aloud.
The C/S Swap: A Family Pattern
Advice/advise is not an oddity. It belongs to a family of English pairs in which the noun ends in -ce and the verb ends in -se, with the same C-to-S swap and the same hiss-to-buzz shift.
- Practice / practise: In British English, practice is the noun (“a medical practice”) and practise is the verb (“to practise piano”). American English uses practice for both.
- Licence / license: In British English, licence is the noun (“a driving licence”) and license is the verb (“to license a product”). American English uses license for both.
- Device / devise: A device is a thing (a gadget); to devise is to invent or plan something.
- Prophecy / prophesy: A prophecy is a prediction; to prophesy is to make one.
The pattern is perfectly regular: the noun keeps the C, the verb takes the S. Once you learn the family, advice/advise stops looking like an isolated exception and starts looking like what it is — one member of a rule that runs through the language. When you meet a new -ce/-se pair, ask the same question: thing or action? The letter tells you.
There is one more member of the family worth knowing: adviser and advisor. Both spellings are correct for the person who gives advice, and both are widely used. Adviser is the more traditional spelling; advisor is common in American job titles (“financial advisor”). Neither is wrong, and the choice is a matter of house style. The person who advises is an adviser — and the guidance they give is advice.
Advice in the Wild: Phrases and Collocations
The noun has a rich life in fixed phrases. “Take my advice” is the classic opener of a warning. “A word to the wise” is a compact way of offering advice without giving it. “Advice column” names the whole genre this article opened with — a newspaper or magazine feature in which readers write in with problems and a columnist answers. “Legal advice” and “medical advice” are professional categories with real consequences: giving them without a license can be a legal problem, which is why websites carry disclaimers saying “this is not legal advice” or “this is not medical advice.”
The noun also appears in the language of caution. “Proceed with caution” is one kind of warning; “take this advice with a grain of salt” is another — it means: listen, but do not trust it completely. And there is the wry proverb: “Advice is what we ask for when we already know the answer but wish we didn’t.” The joke works because it is often true.
Advise in the Wild: Who Advises Whom
The verb lives in professional life. Doctors advise patients. Lawyers advise clients. Consultants advise companies. Teachers advise students. Financial advisers advise investors. In each case, the verb describes a relationship: one person with knowledge, another person with a decision, and the guidance flowing between them.
The verb also has a formal life in warnings and notices. “You are advised to keep this receipt.” “Passengers are advised to arrive early.” “Readers are advised that the content may be disturbing.” The passive construction — are advised — is the language of institutions, and it is always the verb. No one writes “you are adviced,” because the noun cannot wear a tense.
The One-Letter Check
When the word appears in your draft, ask the one question that settles it: thing or action? If the word names the guidance itself — the thing you give, take, follow, or ignore — write advice, with a C. If it names the act of giving guidance — the thing someone does — write advise, with an S. The noun hisses; the verb buzzes. The C is the thing; the S is the doing. And if you ever forget, remember the columnist’s inbox: the readers who ask for advice get it, and the ones who ask her to advise them get the same thing — delivered by a verb.
