ランプranpu

1. nounlamp; light
   このランプは強つよい光線こうせんを出だす。↗

   This lamp sends out a powerful beam.

• Synonym明かりあかりNeutralLight or a bright glow, and also a lamp used for lighting; common in speech. 「ランプ」 is specifically the fixture, and also an oil lamp or indicator lamp.
• Synonym灯ひNeutralBroader in sense than 「ランプ」: it can also mean proof of innocence. As a lamp it stresses the light given off, while 「ランプ」 stresses the fixture itself.
• Synonym電灯でんとうNeutralA general term for electric-lighting devices, a little old-fashioned. 「ランプ」 originally meant an oil lamp, and also covers small lamps and indicator lamps.
• Synonym灯火とうかNeutralAlso written 「灯り」: a lit lamp or the light it gives, electric room lights included, as in 「部屋の明かりをつける」. 「ランプ」 is the concrete device.
• SynonymライトNeutralA loanword for lamps and light in general, as in 「ライトをつける」; also describes pale colours and light flavours. 「ランプ」 mostly means an oil lamp or indicator lamp.
• Synonym洋灯ようとうWrittenA written, old-fashioned word for a Western-style oil lamp — essentially 「ランプ」 rendered in kanji; rarely used today.
• Related照明しょうめいNeutralFirst of all the act or function of brightening a place, and also lighting equipment, as in 「照明を落とす」. 「ランプ」 is a concrete lamp.
• Related燭しょくWrittenAn elegant, literary word read 「ともしび」, meaning a flame or firelight. 「ランプ」 is a concrete lamp fixture.

Use 「ランプ」 for oil lamps and indicator lamps, as in 「警告ランプ」. For the light itself say 「明かり」, for a lamp in general 「ライト」, and for lighting a place 「照明」. 「電灯」 is electric light; 「洋灯」 and 「灯火」 are dated or literary.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. (lamp)照明しょうめい器具きぐの一ひとつ。石油せきゆを燃料ねんりょうとして、芯しんを挿さし火ひを灯ともして使つかう。石油せきゆランプ。
2. (lamp)電灯でんとう。