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

e.g. he studied his reflection in the mirror

Synonym: reflection

2. a likeness in which left and right are reversed

Synonym: mirror imagereflection

3. the ability to reflect beams or rays

Synonym: reflectionreflectivity

4. a calm, lengthy, intent consideration

Synonym: contemplationreflectionruminationmusingthoughtfulness

5. a remark expressing careful consideration

Synonym: observationreflection

6. expression without words

e.g. tears are an expression of grief
the pulse is a reflection of the heart's condition

Synonym: expressionmanifestationreflection

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

Synonym: reflection