reflection - noun

a calm, lengthy, intent consideration

the phenomenon of a propagating wave (light or sound) being thrown back from a surface

expression without words

a likeness in which left and right are reversed

the image of something as reflected by a mirror (or other reflective material)

(mathematics) a transformation in which the direction of one axis is reversed

a remark expressing careful consideration

the ability to reflect beams or rays

reflection - thesaurus

contemplation   expression   manifestation   musing   observation   reflectivity   reflexion   rumination   thoughtfulness