- contemplation, reflection, reflexion, rumination, musing, thoughtfulness - a calm lengthy intent consideration
--1 is a kind of consideration
--1 has particulars:cogitation, study; meditation, speculation; meditation; introspection, self-contemplation, self-examination; omphaloskepsis; retrospect - reflection, reflexion - the phenomenon of a propagating wave (light or sound) being thrown back from a surface
--2 is a kind of physical phenomenon
--2 has particulars: flare; interreflection; virtual image; zodiacal light - expression, manifestation, reflection, reflexion - expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition"
--3 is a kind of demonstration, demo
--3 has particulars:lamentation, mourning; laughter; act; effusion, gush, outburst, blowup, ebullition - reflection, reflexion - the image of something as reflected by a mirror (or other reflective material); "he studied his reflection in the mirror"
--4 is a kind of picture, image, icon, ikon
- mirror image, reflection, reflexion - a likeness in which left and right are reversed
--5 is a kind of likeness, alikeness, similitude
- reflection - (mathematics) a transformation in which the direction of one axis is reversed
--6 is a kind of transformation
- observation, reflection, reflexion - a remark expressing careful consideration
--7 is a kind of remark, comment
--7 has particulars: Parkinson's law; Parkinson's law- reflection, reflexion, reflectivity - the ability to reflect beams or rays
--8 is a kind of physical property
--8 has particulars: echo, reverberation, sound reflection, replication - observation, reflection, reflexion - a remark expressing careful consideration