خَفَّفَ: ضِدّ ثَقَّلَ to lighten, make lighter, reduce the weight of, reduce in weight

خَفَّفَ: أَنْقَصَ، خَفَّضَ to decrease, lessen, diminish, reduce, cut down, cut back, abate; to turn down (the volume or intensity of light or sound).

خَفَّفَ: لَطَّفَ، سَكَّنَ to ease, lighten, soften, palliate, mollify, alleviate, mitigate, soothe, relieve, ally, appease, assuage, attenuate, extenuate, relax, qualify, temper, moderate, tone down.

خَفَّفَ (الْسَّائِلَ): شَعْشَعَ، رَقَّقَ to dilute, thin (down), weaken, attenuate, water (down)

خَفَّفَ سُرْعَتَهُ أَوْ مِنْ سُرْعَتِهِ to slow (down), slacken, delay, decelerate

خَفَّفَ الْعُقُوبَةَ to commute (a punishment or penalty)