Definition of kilo- in English:

kilo-

Pronunciation /ˈkēlō/ /ˈkiloʊ/

  • (used commonly in units of measurement) denoting a factor of 1,000.

    ‘kilojoule’
    ‘kiloliter’

Origin

Via French from Greek khilioi ‘thousand’.

Pronunciation

kilo-

/ˈkēlō/ /ˈkiloʊ/