lightening

• POS: Noun
• HYPHEN: light=en=ing

CIDE DICTIONARY

lightening, n. 

 The process of changing to a lighter color.  [WordNet 1.5]

OXFORD DICTIONARY

lightening, n. a drop in the level of the womb during the last weeks of pregnancy.

THESAURUS

lightening

abatement, achromatization, allayment, alleviating, alleviation, alleviative, assuagement, blanching, bleach, bleaching, blunting, brightening, calming, damping, deadening, decoloration, decolorization, decolorizing, demulsion, diminution, disburdening, discoloration, disembarrassment, disencumbering, disencumberment, disencumbrance, dulcification, dulling, easement, easing, enlightening, etiolation, fading, falling-off, hushing, illuminating, illumining, leniency, lessening, letdown, letup, lighting, loosening, lulling, madder bleach, market bleach, mitigation, modulation, mollification, pacification, paling, palliation, quietening, quieting, reduction, relaxation, relief, relieving, remission, slackening, softening, soothing, subduement, tempering, tranquilization, unballasting, unburdening, unfreighting, unlading, unloading, unsaddling, untaxing, unweighting, whitening