How to pronounce fission
Say it like FISH-un. Fission has two syllables, and the main stress falls on the first one (FISH).
Click the play button next to American or British to hear how to pronounce fission. Choose Slow to hear each sound clearly.
- FISH
- un
- Main stress
- Lighter stress
- Unstressed
Fission pronunciation, sound by sound
Read the parts left to right, then blend them together without pausing.
- FISHSay this part loudest and longest. The vowel is the "i" in sit.
- unKeep this part quick and light. The vowel is the relaxed "uh" in about.
American vs British pronunciation of fission
American and British speakers say fission in essentially the same way: /ˈfɪʃən/ in the US and /ˈfɪʃən/ in the UK.
British respelling: FISH-un.
What does fission mean?
- The process whereby one item splits to become two.
- nuclear fission: The process of splitting the nucleus of an atom into smaller particles.
- The process by which a bacterium splits to form two daughter cells.
- To cause to undergo fission.
- To undergo fission.
Where does fission come from?
Borrowed from Latin fissiōnem, accusative singular of fissiō (“the act of breaking up”), from findō (“split, divide”).
Words that rhyme with fission
Practicing rhymes is a quick way to lock in the vowel sound of fission.
Questions about saying fission
How do you pronounce fission?
Say FISH-un. The American pronunciation is /ˈfɪʃən/. In British English it is /ˈfɪʃən/. Press play above to hear it at normal speed or slowly.
How many syllables are in fission?
Fission has two syllables, and the main stress falls on the first one (FISH). Broken into parts: FISH · un.
Do Americans and Brits say fission the same way?
Almost exactly. The American form is /ˈfɪʃən/ and the British form is /ˈfɪʃən/, so you can use either pronunciation with any listener.