signal

信号、電波

音声、画像などの情報を伝える電気信号や電波。

やさしい英語で： An electrical or radio wave that carries sound, pictures, or other information.

• My phone has no signal here.
• The radio signal became stronger near the town.
• This device sends signals to a satellite.

よく使う表現： phone signal, weak signal, radio signal

合図、信号

何をすればよいかを相手に伝える音、光、動き。

やさしい英語で： A sound, light, or movement that tells someone what to do.

• Wait until I give the signal.
• Her raised hand was a signal to stop.
• The runners listened for the starting signal.

使い方： a signal to do something (The whistle was our signal to start running.)

類義語： sign, cue

よく使う表現： give a signal, signal to someone, start signal, warning signal

識別信号

人や船、航空機が何者かを示す光、画像などの印。

やさしい英語で： A light, picture, or other sign used to show who someone is or identify a ship or aircraft.

• The ship displayed its recognition signal.
• The pilot checked the signal before approaching the other aircraft.
• Each boat used a different signal to identify itself.

類義語： identification sign

よく使う表現： recognition signal, identification signal, signal flag

合図する、知らせる

動き、音、光を使って相手に何かを伝える。

やさしい英語で： To use a movement, sound, or light to tell someone something.

• Please signal before you turn.
• She signalled to the waiter for the bill.
• He signaled that it was safe to cross.

使い方： signal to someone to do something (She signalled to us to wait outside.); signal for something (He signalled for help from the window.); signal that… (The guard signalled that we could enter.)

類義語： indicate, gesture

よく使う表現： signal to someone, signal a turn, signal for help

顕著な、際立った

特に大きい、重要な、または成功している。

やさしい英語で： Especially great, important, or successful.

• The project was a signal success.
• Her discovery remains a signal achievement in medicine.
• The award was a signal honour for the young scientist.

類義語： remarkable, outstanding, notable

よく使う表現： signal success, signal achievement, signal honour