umvsumaWhat's the difference?

Which to use

“um” and “uma” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12
“um” frequency rank
#13
“uma” frequency rank
25
confusion score

Side-by-Side Comparison

Feature um uma
Definition qualquer feminino de um

Where the eye mixes um and uma

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
um
3 ch
uma

Spelling & Dictionary Insight

A purely visual mix-up. um (/ũw/) and uma (/ˈu.mɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “um” sits inside “uma”. Our composite confusion score for this pair is 25, derived from the frequency rank of both members and their visual similarity.

um is recorded at frequency rank #12, classified as anarticle, pronounced /ũw/. uma is at rank #13, tagged as anarticle, pronounced /ˈu.mɐ/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 25, this pair ranks #75,623 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of um vs uma

Shared letters: mu. Private to "um": -. Private to "uma": a.

"um" · 2 letters · shape VC  ·  "uma" · 3 letters · shape VCV

Frequently Asked Questions

Can "um" and "uma" be used interchangeably?
No. They are said differently (/ũw/ versus /ˈu.mɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "um" or "uma"?
"um" is the more common of the two: it sits at frequency rank #12 in our Portuguese list, against #13 for "uma". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list