think, cogitate, reflect, reason, speculate, deliberate mean to use one's powers of conception, judgment, or inference. think is general and may apply to any mental activity, but used alone often suggests attainment of clear ideas or conclusions.
When light, heat, or other rays reflect off a surface or when a surface reflects them, they are sent back from the surface and do not pass through it. The sun reflected off the snow-covered mountains. [VERB preposition] The glass appears to reflect light naturally. [VERB noun]
Definitions of reflecting adjective causing reflection or having a device that reflects “a reflecting microscope” synonyms: reflective capable of physically reflecting light or sound
re•flect /rɪˈflɛkt/ v. Optics to turn or throw back (light, heat, sound, etc.) from a surface: [~ + object] The mirror reflected his image perfectly. [no object] This dull surface doesn't reflect. show:[~ + object] The party seems to reflect the views of its leader.
to make somebody/something appear to be good, bad, etc. to other people. This incident reflects badly on everyone involved. Definition of reflect verb in Oxford Advanced Learner's Dictionary.
When a surface reflects light, sound, or heat, it causes the light, sound, or heat that hits it to move or bounce away in a different direction. A polished surface reflects light. The tiles are used to reflect heat. The old church is reflected in the glass exterior of the skyscraper.