HomeServicesBlogDictionariesContactSpanish Course
Home › Dictionary › English › SIO
← Back to search

Meaning of SIO | Babel Free

Noun CEFR C2

Definitions

  1. Initialism of senior investigating officer.
    UK, abbreviation, alt-of, initialism
  2. Initialism of snap-in-one.
    abbreviation, alt-of, initialism, slang

Equivalents

Bosanski šio
Suomi piimonoksidi
Français sio
Hrvatski šio
Српски šio

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
See all C2 English words →

See also

Siobhan Siocon Siófok siomai siomycin Sion

Learn this word in context

See SIO used in real conversations inside our free language course.

Start Free Course

Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free