obesa vs osa, What's the Difference?

Which to use

“obesa” is an adjective and “osa” is a noun - they look or sound alike but fill different roles in a sentence.

#45,478
“obesa” frequency rank: #22,441
“osa” frequency rank: 67919
confusion score

Side-by-Side Comparison

Feature	obesa	osa
Definition	Forma del femenino singular de obeso.	Forma del femenino singular de oso.

Where the spellings diverge

Shared letters are muted; the letters that actually set obesa and osa apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch

obesa

3 ch

osa

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: obesa is [oˈβ̞esa] while osa is [ˈosa]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 67919, derived from the frequency rank of both members and their visual similarity.

obesa is recorded at frequency rank #45,478, classified as anadj, pronounced [oˈβ̞esa]. osa is at rank #22,441, tagged as anoun, pronounced [ˈosa].

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 67919, this pair ranks #35,866 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of obesa vs osa

Shared letters: aos. Private to "obesa": be. Private to "osa": -.

"obesa" · 5 letters · shape VCVCV · "osa" · 3 letters · shape VCV

Known mistypes of this pair

obesa ← boesa · obbesa · obeas · obessa · obsea · oebsa · ovesa

Frequency comparison

obesa#45,478

osa#22,441

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "obesa" and "osa" be used interchangeably?

No - they are not even the same part of speech. "obesa" is an adjective and "osa" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "obesa" or "osa"?

"osa" is the more common of the two: it sits at frequency rank #22,441 in our Spanish list, against #45,478 for "obesa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering obesa vs osa

The fastest way to pick the right one every time.

Check the role first: if you need an adjective, it's “obesa”; for a noun, it's “osa”.
See each word in full, definition, IPA, etymology and its other confusables. Full “obesa” entry
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