Advice/Advise & Practice/Practise (Regional Split)

These pairs look almost identical, but there's a neat rule hiding inside them: the -ice spelling is usually the noun (a thing), and the -ise spelling is the verb (an action). Learn it once and it unlocks several pairs at the same time.

advice vs advise — let your ears help

Say them out loud. They actually sound different:

• advice (rhymes with ice, an "sss" sound) = the noun, the thing you get. That's good advice.
• advise (rhymes with eyes, a "zzz" sound) = the verb, the action. I advise you to wait.

Trick: advice = a thing (like ice). advise = an action (say it with a z buzz). Your ears already tell them apart — the spelling just follows the sound.

Watch out:

• ✗ Can you advice me? → ✓ Can you advise me? (an action — z sound)
• ✗ That's useful advise. → ✓ That's useful advice. (a thing — s sound)

The same trick works for device/devise

The exact same -ice/-ise split runs through another pair:

• device (s sound) = the noun — a gadget or tool. A clever device.
• devise (z sound) = the verb — to invent or plan. They devised a plan.

Same ears, same rule. If you can hear ice versus eyes, you can spell both pairs.

practice vs practise — the UK noun/verb split

Here it's the same noun/verb idea, but with a twist: the two spellings sound identical, and only British English writes them differently:

• practice (with a c) = the noun. Football practice. Piano practice.
• practise (with an s) = the verb. I practise every day.

Trick: same as advice/advise — c for the thing, s for the action. (And ice comes before ise in the alphabet, just as the noun tends to come first in your head.)

Because you can't hear the difference, this one you have to think: am I naming a thing (practice) or doing an action (practise)? "I go to practice" (a thing) but "I practise the piano" (an action).

The one US line: American English spells both "practice" — noun and verb. So practise is purely a British spelling; in US writing it's practice every time. The same goes for licence (UK noun) / license (UK verb), which Americans always spell license.

Watch out

• ✗ I need to practice my lines. (UK) → ✓ I need to practise my lines. (an action — s)
• ✗ We have football practise on Fridays. (UK) → ✓ We have football practice. (a thing — c)

The UK licence/license pair — worth its own line

Licence/license follows the practice/practise pattern exactly, and it trips up plenty of adults:

• licence (with a c) = the noun in British English. A driving licence. A TV licence.
• license (with an s) = the verb. This shop is licensed to sell food.

Trick: it's the same c-for-thing, s-for-action rule. A licence is a thing you hold; to license something is an action.

Watch out:

• ✗ He passed his driving license. (UK) → ✓ He passed his driving licence. (a thing — c)
• ✗ The café is licenced to sell coffee. → ✓ The café is licensed. (an action — s)

And the US line once more: American English spells both license, so in US writing you never have to choose.

One more, said aloud: prophecy/prophesy

This pair keeps the noun/verb split but, like advice/advise, you can actually hear it:

• prophecy (ends in -see) = the noun, the prediction. An ancient prophecy.
• prophesy (ends in -sigh) = the verb, to predict. They prophesy disaster.

Same trick, ears first: if it sounds like see, it's the thing; if it sounds like sigh, it's the doing.

One phrase that breaks the feel: "practice makes perfect"

A quick warning about a famous phrase. "Practice makes perfect" is spelled with a c, even though "practice" there feels a bit like an action. That's because it's really naming the thing - practice, the general idea - so it takes the noun spelling. The same goes for "out of practice" and "it works in practice." If the word names the whole idea of practising rather than someone actually doing it right now, reach for the c. When in doubt, ask: could I put "the" in front? The practice sounds fine, so it's the noun.

Why it's worth knowing

One small rule — -ice for the thing, -ise for the action — quietly sorts out advice/advise, device/devise, and (in British spelling) practice/practise and licence/license. That's four or five pairs handled by a single idea, which is a very good return for ten seconds of learning. And in coursework marked in UK English, the practice/practise split is exactly the kind of detail that separates careful writing from rushed writing. Best of all, you don't need to memorise long lists — you carry one rule (-ice thing, -ise action) and, where you can hear it, let your ears do the rest.

Quick check

1. Can you give me some ___ (advice / advise)?

2. (UK) I need to ___ my spellings (practice / practise).

3. (UK) We have swimming ___ on Fridays (practice / practise).

4. They had to ___ a whole new plan (device / devise).

5. My phone is a handy ___ for revision (device / devise).

Where next

• Complement, Principal, Stationery — more sound-alike pairs with tricks.
• Affect or Effect? — another noun-vs-verb split.
• Commonly Confused Words — the full confusables list.