aspartame

/əˈspɑːteɪm/

//əˈspɑːteɪm// noun

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

The verdict

“aspartame” is an uncommon English word, ranked #53,379 in English word frequency and used as a noun.

#53,379
frequency rank, English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An artificial sweetener, the methyl ester of a dipeptide formed from aspartic acid and phenylalanine, used in many processed foods and beverages.

Key facts for aspartame
PropertyValue
Headwordaspartame
LanguageEnglish
Part of speechNoun
IPA/əˈspɑːteɪm/
Letters9
Frequency rank#53,379
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “aspartame” 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). aspartame 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 aspartame is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /əˈspɑːteɪm/. Corpus data places it at rank #53,379 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "An artificial sweetener, the methyl ester of a dipeptide formed from aspartic acid and phenylalanine, used in many processed foods and beverages.".

No misspelling variants are generated for aspartame in our index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: Commercial name, from aspartic. The -ame is perhaps because aspartame is an amide. Compare aspartamine. The correct English form is aspartame, spelled A-S-P-A-R-T-A-M-E.

Definition

  1. 1
    An artificial sweetener, the methyl ester of a dipeptide formed from aspartic acid and phenylalanine, used in many processed foods and beverages.

Etymology

Commercial name, from aspartic. The -ame is perhaps because aspartame is an amide. Compare aspartamine.

Synonyms

E951 when used as a sweetener

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 "aspartame"?
"aspartame" is spelled A-S-P-A-R-T-A-M-E. The IPA pronunciation is /əˈspɑːteɪm/.
What does "aspartame" mean?
As a noun, "aspartame" means: An artificial sweetener, the methyl ester of a dipeptide formed from aspartic acid and phenylalanine, used in many processed foods and beverages.
How do you pronounce "aspartame"?
The IPA (International Phonetic Alphabet) transcription for "aspartame" is /əˈspɑːteɪm/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "aspartame"?
Commercial name, from aspartic. The -ame is perhaps because aspartame is an amide. Compare aspartamine. 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 “aspartame”

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

  • The one correct English spelling is A-S-P-A-R-T-A-M-E - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈspɑːteɪm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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