极速

極速
jísù
  1. extreme speed
  2. extremely quickly

Wiktionary

Entry Composition

=1 极 jí
  1. extremely
  2. pole (geography, physics)
  3. utmost
  4. top
=1 极 jí
  1. (historical dictionaries only) wooden rack on donkey
  2. wooden rack on donkey
2 速 sù
  1. fast
  2. rapid
  3. quick
  4. velocity