---
title: "How to pronounce aluminum | Murmur"
description: "Aluminum in US English has four syllables, uh-LOO-muh-num (AH0 L UW1 M AH0 N AH0 M), with stress on \"LOO\" and no extra \"ee\"."
canonical: "https://www.murmurtts.com/pronunciation/aluminum"
---
[Murmur](https://www.murmurtts.com/)/[Pronunciation](https://www.murmurtts.com/pronunciation)/aluminum

Pronunciation · Science and learning

# How to pronounce aluminum

Aluminum in US English has four syllables, uh-LOO-muh-num (AH0 L UW1 M AH0 N AH0 M), with stress on "LOO" and no extra "ee".

[Buy $49](https://murmur-licenses.tarunyadav9761.workers.dev/checkout)[Download free for Apple Silicon (3-day Pro trial)](https://murmur-updates.tarunyadav9761.workers.dev/download/latest)Intel Mac? [Download here](https://murmur-updates.tarunyadav9761.workers.dev/download/intel).Not sure? Apple menu > About This Mac shows your chip.

Free plan with Kokoro voices, 3,000 characters a day · 3-day Pro trial, then $49 once

## The dictionary sound sequence

CMUdict lists this North American English pronunciation for **aluminum**. Read each sequence from left to right. The numbers mark vowel stress: **1** primary, **2** secondary, **0** unstressed.

Dictionary variant 1

`AH0 L UW1 M AH0 N AH0 M`

**Syllable estimate**

4 vowel nuclei

**Primary stress**

2nd vowel position

[Check aluminum in Merriam-Webster and listen to available dictionary audio](https://www.merriam-webster.com/dictionary/aluminum).

Syllable counts come from vowel tokens; CMUdict does not supply syllable boundaries here. Variant order follows the dictionary and does not rank correctness. This lexicon does not represent every accent or context.

## Use aluminum in context

Chemistry lessons, product specs and manufacturing videos all mention aluminum. The US spelling and the CMU entry give four syllables stressed on the second, which differs from the British spelling aluminium and its five-syllable reading. This page covers the US form only.

1. The case is machined from a single block of aluminum.
2. Recycle the aluminum cans in the blue bin.

### A practice cue

Say "LOO" with full weight and let the next two syllables stay short. If the script uses the British spelling, it calls for a different reading than this entry shows.

## Read the sound tokens

Each example word below is a cue for the named sound, rather than a respelling of aluminum. Unstressed vowels may sound reduced. These cues follow the [CMU phoneme-set key (Appendix A)](https://www.cs.cmu.edu/~aria/Papers/MastersThesis.pdf#page=115).

`AH`sound in **hut**vowel`L`sound in **lee**consonant`UW`sound in **two**vowel`M`sound in **me**consonant`N`sound in **knee**consonant

Take it to your next recording

## Make an audition worksheet

Select a dictionary variant for your checklist. The two original sentences retain their normal spelling; this worksheet helps you review a recording rather than forcing a speech engine to use phonemes.

Copying and downloading happen in your browser. No script upload or audio generation is needed.

## Dictionary source

The phonemes on this page come from [CMU Pronouncing Dictionary](https://github.com/cmusphinx/cmudict/blob/74790861f652b15e4ac49015a90074ad62a27690/cmudict.dict). The dictionary maintainers acknowledge that errors and omissions can remain; check another source or a speaker when the pronunciation matters.

[CMUdict README](https://github.com/cmusphinx/cmudict/blob/74790861f652b15e4ac49015a90074ad62a27690/README) · [Included dictionary license](https://www.murmurtts.com/downloads/cmudict-license.txt)

Source version and checksum

Commit: `74790861f652b15e4ac49015a90074ad62a27690`

Dictionary SHA-256: `81917843c7f44ce2b094ac63873c2c7a4cf802040792c455ba3ca406891c3d22`

## Keep practising

[How to pronounce nuclear](https://www.murmurtts.com/pronunciation/nuclear)[How to pronounce chassis](https://www.murmurtts.com/pronunciation/chassis)[How to pronounce uranus](https://www.murmurtts.com/pronunciation/uranus)[How to pronounce solder](https://www.murmurtts.com/pronunciation/solder)

[Build a pronunciation test suite for local TTS](https://www.murmurtts.com/blog/pronunciation-test-suite-local-tts) · [Browse all word references](https://www.murmurtts.com/pronunciation)

Murmur for Mac and Windows

## Check the word in a real voiceover.

Murmur generates speech locally on Apple Silicon and Intel Macs, and on 64-bit Windows 10 and 11 as a beta. Try your audition sentences with your chosen model and voice, listen for pronunciation, and review the result before exporting. A dictionary sequence does not guarantee a model’s output.

[Buy $49](https://murmur-licenses.tarunyadav9761.workers.dev/checkout)[Download free for Apple Silicon (3-day Pro trial)](https://murmur-updates.tarunyadav9761.workers.dev/download/latest)Intel Mac? [Download here](https://murmur-updates.tarunyadav9761.workers.dev/download/intel).Not sure? Apple menu > About This Mac shows your chip.[Explore Murmur](https://www.murmurtts.com/?utm_source=pronunciation&utm_medium=pseo&utm_campaign=wave1&utm_content=aluminum#product)[Get Murmur free by sharing it](https://www.murmurtts.com/free?utm_source=pronunciation&utm_medium=pseo&utm_campaign=wave1&utm_content=aluminum)
