piecewise

adv

"piecewise" is a 9-letter English headword indexed on PlainSpell.

The verdict

“piecewise” is an uncommon English word, ranked #82,667 in English word frequency and used as an adverb.

#82,667
frequency rank, English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In terms or by means of pieces; a piece at a time.

Key facts for piecewise
PropertyValue
Headwordpiecewise
LanguageEnglish
Part of speechAdverb
Letters9
Frequency rank#82,667
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “piecewise” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). piecewise lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for piecewise is 9 letters long, classified as an adverb. Corpus data places it at rank #82,667 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

piecewise doesn't appear in our generated misspelling index, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From piece + -wise. The correct English form is piecewise, spelled P-I-E-C-E-W-I-S-E.

Definition

  1. 1
    In terms or by means of pieces; a piece at a time.
  2. 2
    Throughout separate parts, but not necessarily throughout the whole.

Etymology

From piece + -wise.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "piecewise"?
"piecewise" is spelled P-I-E-C-E-W-I-S-E.
What does "piecewise" mean?
As an adverb, "piecewise" means: In terms or by means of pieces; a piece at a time.
What is the origin of the word "piecewise"?
From piece + -wise. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “piecewise”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is P-I-E-C-E-W-I-S-E - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

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