(heraldry) A charge borne upon an ordinary or other charge.

(electrics, electronics) An instance of supercharging.

Used other than figuratively or idiomatically: see super,‎ charge.

(automotive) To increase the power of an internal combustion engine (either Otto or Diesel cycle) by compressing the inlet air with power extracted from the crankshaft.

(transitive) To make faster or more powerful.

(Can we verify(+) this sense?) (heraldry) To overlay one charge upon another.

(electronics, electrics) To recharge a battery cell/pack at an extremely rapid pace.

Used other than figuratively or idiomatically: see super,‎ charge.