Quick answer: Moot means debatable, or in American English, no longer relevant or of no practical importance: the point is moot now that the decision has been made. Mute means silent, unable or unwilling to speak, or (as a verb) to silence something: he stayed mute, mute the microphone. The correct expression is “moot point”, not “mute point”. For a fuller definition, see the Cambridge Dictionary entry for ‘moot’.

Comparison Table

WordPart of SpeechMeaningExample
mootadjectivedebatable, or (US) no longer relevant/of no practical importanceWhether we should have booked earlier is moot now.
muteadjective / verbsilent, unable to speak; or to silence somethingShe sat mute, unable to find the words.

Using Moot

Moot describes something open to debate, or — especially in American English — something that has become irrelevant because the matter has already been settled.

Now that the flight has already left, arguing about the schedule is moot.

Whether the plan would have worked is a moot point — we never tried it.

The lawyers debated a moot case in their law school competition.

His objection became moot once the contract was signed.

Using Mute

Mute describes silence, an inability or unwillingness to speak, or the act of silencing something.

He remained mute throughout the entire interrogation.

Please mute your microphone while others are speaking.

The trumpet player used a mute to soften the sound.

She stared in mute astonishment at the news.

Memory Trick

Moot has two O's, like a round-table debate going round and round with no resolution — it's about whether a topic is still worth discussing. Mute starts like "mum", as in "keep mum" (stay silent) — it's about sound and speech.

Common Mistakes

Mistake 1 — Writing "mute point" instead of "moot point"

It's a mute point now that the decision has been made.
It's a moot point now that the decision has been made.
This is one of the most common eggcorns in English — "moot point" is the correct expression.

Mistake 2 — Using moot to mean silent

He went completely moot after hearing the news.
He went completely mute after hearing the news.

Tips to Avoid Confusion

  • The fixed expression is always “moot point”, never “mute point”.
  • Use moot when discussing whether something is debatable or still relevant.
  • Use mute when discussing silence, sound, or the ability/willingness to speak.
  • Remember: moot = discussion/relevance; mute = sound/speech.

For more on related grammar, see adjectives. Also confusing: Afraid vs Frightened, Alone vs Lonely, Angry vs Furious. Browse all confusing word pairs →

Quick Check: Moot or Mute?

4 fill-in-the-blank questions — choose the correct word for each sentence.

1. “Now that the sale is finished, the price debate is ___.” (no longer relevant)

2. “Please ___ your phone before the film starts.” (silence it)

3. “It's a ___ point whether we could have finished sooner.”

4. “He stayed completely ___, refusing to answer any questions.”

Frequently Asked Questions

What is the difference between moot and mute?

Moot means debatable, or in American usage, no longer relevant or of no practical importance: "the point is moot now that the decision has been made." Mute means silent, unable or unwilling to speak, or (as a verb) to silence something: "he stayed mute", "mute the microphone."

Why do people write 'mute point' instead of 'moot point'?

Because 'moot' and 'mute' sound somewhat similar in casual speech, and 'mute point' can seem to make sense (a point that's been silenced or is no longer worth discussing). However, the correct, standard expression is 'moot point', not 'mute point'.

What does 'a moot point' actually mean?

'A moot point' is a matter open to debate, or in American English, one that has become irrelevant because circumstances have already settled it: "Whether we should have left earlier is a moot point now — we already missed the train."

Does moot always mean 'irrelevant'?

Not always. In British English and in legal/academic contexts, 'moot' often keeps its original sense of 'open to debate or discussion', as in a 'moot court' used to practise legal arguments. American informal usage has shifted it more toward 'no longer relevant'.

Can mute be a verb?

Yes. As a verb, 'mute' means to silence or reduce the volume of something: "Please mute your microphone during the call." It's also used for muting notifications, video calls, and musical instruments (a 'mute' on a trumpet).

Is 'mute' ever used to describe a person who cannot speak?

Historically, 'mute' was used to describe people unable to speak, but this usage is now considered outdated and potentially offensive. Modern preferred terms include 'nonverbal' or 'has a speech impairment'. 'Mute' today is mostly used for temporary silence or muting sound/devices.

What is a 'moot court'?

A 'moot court' is a mock trial used in law schools where students argue hypothetical legal cases for practice. It uses 'moot' in its original sense of a matter set up for debate or argument, not actual litigation.

Can something stay silent and also be called moot?

Not directly — 'moot' describes the importance or relevance of a topic, not literal sound or silence. If you want to describe silence itself, use 'mute' (as an adjective for a person or object) or 'silent'. They describe different things entirely, despite sounding alike.

What's the adjective form used for a muted television or phone?

We say the TV or phone is 'muted' (past participle used as an adjective) or 'on mute': "The television was muted during the meeting" / "Please put your phone on mute."

How can I remember moot vs mute?

Moot has two O's, like a round-table debate going 'round and round' with no resolution — it's about a topic still (or no longer) worth discussing. Mute starts like 'mum', as in 'keep mum' (stay silent) — it's about sound and speech, not debate.