costosvscostosaWhat's the difference?

Quick tell: costos is a noun, costosa is an adjective, so they fill different roles in a sentence.

Which to use

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

#3,038
“costos” frequency rank
#18,203
“costosa” frequency rank
21241
confusion score

Side-by-Side Comparison

Feature costos costosa
Definition Forma del plural de costo. Forma del femenino de costoso.

Where the spellings diverge

Shared letters are muted; the letters that actually set costos and costosa apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

6 ch
costos
7 ch
costosa

Spelling & Dictionary Insight

costos and costosa form a confusable pair in the Spanish index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 extra letter(s) - “costos” sits inside “costosa” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 21241, derived from the frequency rank of both members and their visual similarity.

costos is recorded at frequency rank #3,038, classified as anoun, pronounced [ˈkost̪os]. costosa is at rank #18,203, tagged as anadj, pronounced [kosˈt̪osa].

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 21241, this pair ranks #255,794 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

costos#3,038
costosa#18,203

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "costos" and "costosa" be used interchangeably?
No, "costos" and "costosa" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering costos vs costosa

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “costos”; for an adjective, it's “costosa”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “costos” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list