secondvsselonWhat's the difference?

Quick tell: second is a adjective, selon is a preposition, so they fill different roles in a sentence.

Which to use

“second” is an adjective and “selon” is a preposition - they look or sound alike but fill different roles in a sentence.

#887
“second” frequency rank
#225
“selon” frequency rank
1112
confusion score

Side-by-Side Comparison

Feature second selon
Definition Élément ordinal, correspondant au cardinal deux ; qui vient immédiatement après le premier. D’après ; eu égard à ; conformément à ; d’une manière correspondant à ; en proportion ; en fonction de.

Where the spellings diverge

Shared letters are muted; the letters that actually set second and selon apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

6 ch
second
5 ch
selon

Spelling & Dictionary Insight

second and selon form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 1112, derived from the frequency rank of both members and their visual similarity.

second is recorded at frequency rank #887, classified as anadj, pronounced \sə.ɡɔ̃\. selon is at rank #225, tagged as aprep, pronounced \sə.lɔ̃\.

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 1112, this pair ranks #438,601 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

second#887
selon#225

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "second" and "selon" be used interchangeably?
No, "second" and "selon" 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 second vs selon

The fastest way to pick the right one every time.

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