Diameter and Size

Diameter

Diameter noun - The length of a straight line passing through the center of a circle and connecting two points on the circumference.

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Size and diameter are semantically related In some cases you can use "Size" instead a noun "Diameter".

Nearby Words: diametric, diametral

Size noun - The total amount of measurable space or surface occupied by something.

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Diameter and size are semantically related in extent or bulk of some dimension topic. You can use "Diameter" instead a noun "Size".

Nearby Words: sized, sizing, sizeable

high	high diameter	high size
physical	physical diameter	physical size
low	low diameter	low size
right	right diameter	right size
Other adjectives: actual, large, possible, greater, larger, smaller, maximum, overall.

All of this is beaten by Trypticon, whose alt mode is the size of the planet Neptune at fifty thousand kilometers in diameter (and a hundred fifty thousand kilometers tall in robot mode).

Source: Roleplay / Sporum Dimensional Clash
Compressed Hair: The base of Edyn's ponytail has a diameter around the size of her skull yet it can vanish completely then she puts on a hood to hide her identity.

Source: Western Animation / Magi-Nation
Said circle gets wider the more you power it up, until its diameter becomes the size of the whole screen.

Source: Game Breaker / Shoot'em Ups

Cite this Source

Size and Diameter. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/diameter/size

Diameter & Size. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/diameter/size>.

Size or Diameter. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/diameter/size.

Google Ngram Viewer shows how "diameter" and "size" have occurred on timeline