milestone

Name: milestone, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

/ˈmaɪlˌstoʊn/

//ˈmaɪlˌstoʊn// noun

By PlainSpell Editorial Team · According to Wiktionary data (CC BY-SA) · analyzed May 6, 2026

The verdict

“milestone” is a moderately-common English word, ranked #11,071 in English word frequency and used as a noun.

#11,071
frequency rank, English: 9
letters: 13
tracked misspellings: 1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

milestone vs millstone

89% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for milestone
Property	Value
Headword	milestone
Language	English
Part of speech	Noun
IPA	/ˈmaɪlˌstoʊn/
Letters	9
Frequency rank	#11,071
Misspellings tracked	13
Confusable pairs	1
Source	Wiktionary (kaikki.org)

Where “milestone” 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). milestone lands here:

#11,071

#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 milestone is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈmaɪlˌstoʊn/. Corpus data places it at rank #11,071 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.

Our generated misspelling index lists 13 likely wrong-spelling variants for milestone, with forms such as "imlestone", "mielstone", and "milesotne". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "millstone", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From mile + stone. Compare Dutch mijlsteen (“milestone”), German Low German Mielensteen (“milestone”), German Meilenstein (“milestone”), Swedish milsten (“milestone”). The correct English form is milestone, spelled M-I-L-E-S-T-O-N-E.

Definition

1
A stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median.
2
An important event in a person's life or career, in the history of a nation, in the life of some project, etc.

Etymology

From mile + stone. Compare Dutch mijlsteen (“milestone”), German Low German Mielensteen (“milestone”), German Meilenstein (“milestone”), Swedish milsten (“milestone”).

Synonyms

landmark

This word in other languages

hito(Español)borne(Français)Meilenstein(Deutsch)marco(Português)

Common misspellings

Also misspelled as: imlestone,mielstone,milesotne,milesstone,milestnoe,milestoen,milestonne,milesttone,miletsone,millestone,milsetone,mliestone,mmilestone

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of milestone - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

Edit distance from "milestone"

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 "milestone"?

"milestone" is spelled M-I-L-E-S-T-O-N-E. The IPA pronunciation is /ˈmaɪlˌstoʊn/.

What does "milestone" mean?

As a noun, "milestone" means: A stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median.

What words are commonly confused with "milestone"?

"milestone" is commonly confused with "millstone". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.

How do you pronounce "milestone"?

The IPA (International Phonetic Alphabet) transcription for "milestone" is /ˈmaɪlˌstoʊn/. 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 "milestone"?

From mile + stone. Compare Dutch mijlsteen (“milestone”), German Low German Mielensteen (“milestone”), German Meilenstein (“milestone”), Swedish milsten (“milestone”). 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 “milestone”

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

The one correct English spelling is M-I-L-E-S-T-O-N-E - every other letter order is a misspelling in standard orthography.
Say it as /ˈmaɪlˌstoʊn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
Don't mix it up with “millstone” - see the side-by-side comparison. milestone vs millstone
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.