Skip to main content
tachyon

tachyon

1 9.8
A person or thing that moves very quickly
  • noun
  • /ˈtækiˌɒn/
  • Slang
translation icon : rayo
  • In a video game, the character moved like a tachyon, swiftly dodging all attacks.

Examples

  • Her mind worked at the speed of a tachyon, solving puzzles in seconds.

  • So you pull out your Tachyon text message service and you say watch out for the banana peel.

  • So now you have a Tachyon texting smartphone, OK?

  • The athlete was like a tachyon, breaking records with every race.

Synonyms

speedster
vstachyon
16 4.1

A person, animal, or vehicle that moves very fast

means moving at an extreme speed rather than only very fast
darter
vstachyon
1 8.0

A person or animal that moves quickly in short bursts

is used for someone or something moving extremely fast rather than in short bursts
scudder
vstachyon
  • Archaic
9.9

A person who runs very fast

is a modern informal term instead of an older, outdated expression

How Fast

tachyon
  • Slang
1 9.8
speed demon
  • Informal
2 6.9
sprinter
17 1.9
runner
241 1.0
walker
33 1.0
slowpoke
  • Offensive
5 6.8

Surface Forms

tachyon singular
tachyons plural

Morphology

tachyon = tachy (semi-transparent) = tachy + on

Extension of the technical term to a colloquial 'fast person/thing' is predictable from 'tachy-' (fast) + '-on' (one/thing), but this is a figurative/metaphorical use derived from the scientific term.

Etymology

Tachyon comes from the Greek root tachy- meaning 'swift' and the ending -on, like in electron. People sometimes use tachyon jokingly to call a person or thing that is extremely fast.