reflection

(noun) a calm, lengthy, intent consideration. Synonyms: contemplation, reflexion, rumination, musing, thoughtfulness.

(noun) the phenomenon of a propagating wave (light or sound) being thrown back from a surface. Synonyms: reflexion.

(noun) expression without words. Synonyms: expression, manifestation, reflexion. Examples: "Tears are an expression of grief." "The pulse is a reflection of the heart's condition."

(noun) a likeness in which left and right are reversed. Synonyms: mirror image, reflexion.

(noun) the image of something as reflected by a mirror (or other reflective material). Synonyms: reflexion. Examples: "He studied his reflection in the mirror."

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

(noun) a remark expressing careful consideration. Synonyms: observation, reflexion.

(noun) the ability to reflect beams or rays. Synonyms: reflexion, reflectivity.