MondayvsMondaysWhat's the difference?

Quick tell: Monday is a noun, Mondays is an adverb, so they fill different roles in a sentence.

Which to use

“Monday” is a noun and “Mondays” is an adverb - they look or sound alike but fill different roles in a sentence.

#1,666
“Monday” frequency rank
#17,679
“Mondays” frequency rank
19345
confusion score

Side-by-Side Comparison

Feature Monday Mondays
Definition The second day of the week in many religious traditions, and the first day of the week in systems using the ISO 8601 norm. It follows Sunday and precedes Tuesday. On Monday; each Monday.

Where the spellings diverge

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

6 ch
Monday
7 ch
Mondays

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Monday is anoun and Mondaysanadverb. On the page they differ by 1 extra letter(s) - “Monday” sits inside “Mondays”. Our composite confusion score for this pair is 19345, derived from the frequency rank of both members and their visual similarity.

Monday is recorded at frequency rank #1,666, classified as anoun, pronounced /ˈmʌn.deɪ/. Mondays is at rank #17,679, tagged as anadv.

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 19345, this pair ranks #438,813 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Monday vs Mondays

Shared letters: admnoy. Private to "Monday": -. Private to "Mondays": s.

"Monday" · 6 letters · shape CVCCVV  ·  "Mondays" · 7 letters · shape CVCCVVC

Known mistypes of this pair

  • Mondaymmonday · mnoday · modnay · monady · mondayy · mondday · mondya · monnday
  • Mondaysmmondays · mnodays · modnays · monadys · mondasy · mondayss · mondayys · monddays

Frequency comparison

Monday#1,666
Mondays#17,679

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Monday" and "Mondays" be used interchangeably?
No - they are not even the same part of speech. "Monday" is a noun and "Mondays" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Monday" or "Mondays"?
"Monday" is the more common of the two: it sits at frequency rank #1,666 in our English list, against #17,679 for "Mondays". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering Monday vs Mondays

The fastest way to pick the right one every time.

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