| phosphorescence(noun, light, flash, shine, glow) |
| pick up on(verb, expression, idiom, phrasal verb, study) |
| pilot light |
| pin(verb, see, regard, observe, look) |
| pipe(verb, see, regard, observe, look) |
| portable(adjective, light) |
| pottery(adjective, light) |
| radiance(noun, light, flash, shine, glow) |
| radiation(noun, light, flash, shine, glow) |
| ray(noun, light, flash, shine, glow) |
| read(verb, mark, see, note, regard) |
| recognize(verb, mark, see, note, regard) |
| refulgence(noun, light, flash, shine, glow) |
| regard(noun, verb, mark, see, note) |
| rubber(verb, see, regard, observe, look) |
| rushlight |
| safety(adjective, light) |
| scintillation(noun, light, flash, shine, glow) |
| scrutinize(verb, study, mark, see, note) |
| sheen(noun, light, flash, shine, glow) |