rear lamp(n = noun.artifact) rear light, tail lamp, taillight - lamp (usually red) mounted at the rear of a motor vehicle;
is a kind of lamp
is a part of electrical system

aladdin's lamp, arc lamp, argand lamp, blast lamp, carbon arc lamp, carcel lamp, davy lamp, discharge lamp, electric lamp, electric-discharge lamp, flash lamp, flood lamp, floor lamp, fluorescent lamp, fresnel lamp, gas lamp, gas-discharge lamp, glow lamp, heat lamp, hurricane lamp, incandescent lamp, indicator lamp, infrared lamp, kerosene lamp, kerosine lamp, lady with the lamp, lamp, lamp chimney, lamp house, lamp housing, lamp oil, lamp shade, lamp shell, mercury-vapor lamp, neon induction lamp, neon lamp, oil lamp, pilot lamp, quartz lamp, reading lamp, rear, rear admiral, rear back, rear end, rear light, rear of barrel, rear of tube, rear window, riding lamp, safety lamp, sodium-vapor lamp, sodium-vapour lamp, spirit lamp, storm lamp, street lamp, student lamp, sun lamp, sun-ray lamp, sunray lamp, table lamp, tail lamp, tungsten lamp, ultraviolet lamp