FREE ONLINE ENGLISH DICTIONARY

Online English Dictionary.

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Every entry places plain-English word meanings and part-of-speech breakdowns at the top of the page without autoplay ads. Alongside standard definitions and audio pronunciations, each word profile includes CEFR and US grade-level readability ratings, historical usage charts, and one-click academic citations.

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Scroll to the Citation section at the bottom of any dictionary entry and select the tab for APA, MLA, or Chicago style. Click the copy button to paste the pre-formatted reference with the current access date directly into your bibliography.

Q: Does the dictionary show whether a word is valid in Scrabble or Words With Friends?

Single-word dictionary entries include a Lexical & Game Profile bar that verifies playability and exact point values in US Scrabble (NWL), International Scrabble (CSW), Words With Friends, and five-letter daily word puzzles.

Look up clear word definitions, US and UK phonetic pronunciations, historical word origins, and real sentence examples across more than 300,000 English entries.

noninvasively

/ˌnɑːn.ɪnˈveɪ.sɪv.li/ • adverb

In a medical manner that does not require the introduction of instruments, devices, or objects into the body.

Synonyms: externally

In Context

"The patient's heart rate and oxygen levels were monitored noninvasively throughout the night."

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Popular Right Now

Trending Words

adjective

palimpsestic

Characterized by multiple overlapping layers of history, meaning, or development, where past elements remain partially visible or actively influence the present.

Synonyms: multilayeredlayeredstratified

verb

eat

To put food into the mouth, chew it, and swallow it for nourishment.

Synonyms: consumeingestdevour

noun

killing

An act of causing death, especially deliberately or unlawfully.

Synonyms: slayingmurderhomicide

noun

question

A sentence, phrase, or word worded or expressed so as to elicit information or an answer from someone.

Synonyms: inquiryqueryinterrogation

adjective

tight

Fixed, fastened, or closed firmly so as to be hard to move, undo, or open.

Synonyms: securefirmfast

adjective

serious

Significant, severe, or worrying because of possible danger, harm, or unfavorable consequences; demanding careful consideration or urgent action.

Synonyms: graveseverecritical

Built for Fast, Practical Word Lookup

Every dictionary entry is organized so you can grasp the meaning of a word in seconds.

Plain-English Meanings

Definitions are written in direct, modern prose without circular references or pop-up clutter interrupting the page.

Academic & Readability Data

Each entry pairs parts of speech, IPA phonetic pronunciation, and word etymology with US grade-level and CEFR reading tiers.

Word Game Tile Scores

Single-word entries verify tournament playability and exact tile points for Scrabble® (US and UK) and Words With Friends®.

What You Find in Every Dictionary Entry

Many reference sites bury simple word definitions beneath autoplay video ads and circular phrasing that defines a noun with its own root verb. We structured our online dictionary around direct definitions, verified usage context, and classroom-ready reference tools.

Usage Notes & Word Nuance

Dedicated usage notes explain how closely related words differ in register, tone, and grammatical placement inside real sentences.

One-Click Academic Citations

Copy formatted APA, MLA, and Chicago citations directly from the bottom of any word definition page for essays and research papers.

US Grade & CEFR Levels

Entries display US K–12 grade levels, CEFR proficiency ratings (A1 to C2), and Three-Tier vocabulary classifications for educators and learners.

Game Dictionary Verification

Confirm whether a word is legal in US Scrabble (NWL), UK Scrabble (CSW), Words With Friends, and Wordle alongside its base tile score.

Connected Synonyms & Rhymes

Jump from any definition to sense-grouped synonyms, direct antonyms, and syllable-sorted rhyming words with a single click.

Word Origin & Usage Trends

Trace a term's Latin, Greek, or Germanic roots and view historical print frequency charts sourced from published books.

Frequently Asked Questions

How is the Wordmom online dictionary different from traditional reference sites?

How do I look up a word definition or phonetic pronunciation?

Is this English dictionary free for students and educators?

How do I cite a word meaning in APA, MLA, or Chicago format?

Does the dictionary show whether a word is valid in Scrabble or Words With Friends?