Definition of keep down in English:

keep down

phrasal verb

  • Stay hidden by crouching or lying down.

    ‘Keep down! There's someone coming’
    • ‘The building was full of smoke, so I held my breath, kept down low and squirted the contents of the extinguisher.’
    • ‘‘Keep down, and don't even breathe!’ I whispered.’
    • ‘As we neared the shore we were ordered to keep down to avoid getting wounded should the enemy start shelling the incoming craft.’
    • ‘I'm much taller than the children on the field and they keep hissing at me to keep down.’