invert Definition

invert
verb inverted, inverting

1. To turn upside down or inside out.

Thesaurus: upset, overturn, turn upside-down, tip.
2. To reverse in order, sequence, direction, effect, etc.

Thesaurus: reverse, transpose, exchange, rearrange, change.
3. music.
To change (eg a chord) by placing the lowest note an octave higher.

Etymology: 17c: from Latin invertere.