flag

旗

国や集団を表したり合図を送ったりする、色や模様のある布。

やさしい英語で： A piece of cloth with colors or a design, used to represent a country or group or send signals.

• They raised the flag at sunrise.
• Children waved flags beside the road.
• A red flag warned swimmers to stay out of the sea.

類義語： banner

よく使う表現： national flag, raise a flag, wave a flag

国旗、旗

国や組織、集団を表す色や形の組み合わせ。

やさしい英語で： A design of colors and shapes that represents a country, organization, or group.

• The flag of Italy has three colors.
• She drew the flag on her notebook.
• The website displays a small flag beside each country’s name.

使い方： flag of something (The flag of Japan has a red circle.)

よく使う表現： national flag, flag design, flag of something

フラグ

ある条件が成り立つか、処理が必要かを示すコンピューター内の値。

やさしい英語で： A stored value in a computer that records whether something is true or whether an action is needed.

• The program checks a flag before saving.
• Set the flag to true when the task finishes.
• These flags record whether each file has changed.

類義語： indicator

よく使う表現： set a flag, boolean flag, status flag

オプション、フラグ

コンピューターのコマンドに加えて、その動作を変える指定。

やさしい英語で： An option added to a computer command to change what it does.

• Add the help flag to see the instructions.
• This flag makes the command print more details.
• Which flags should I use to list hidden files?

類義語： option, switch

よく使う表現： command flag, help flag, add a flag

スタートの合図

競走などを始めるために旗で出す合図。

やさしい英語で： A signal made with a piece of cloth to start a race or another event.

• The runners moved at the flag.
• Wait for the flag before you start.
• At the flag, all six cars raced forward.

類義語： start signal

よく使う表現： at the flag, drop the flag

将官旗

提督が乗船していることを示す旗。提督本人やその船を指すこともある。

やさしい英語で： A ship’s banner showing an admiral is aboard; sometimes the admiral or their ship.

• The admiral’s flag flew above the ship.
• The vessel carried the flag during the naval exercise.
• The captain welcomed the flag aboard before the fleet departed.

よく使う表現： admiral’s flag, fly a flag, flag aboard

印を付ける

気づいてもらうため、または対応が必要だと示すために印を付ける。

やさしい英語で： To mark something so people notice it or know it needs attention.

• Please flag the important pages.
• I flagged the message so I could find it later.
• The editor flags passages that need further research.

使い方： flag something for something (Please flag this document for review.)

類義語： mark, highlight

よく使う表現： flag something, flag for review, flag important messages

検出する、指摘する

何かが起きたことや、対応が必要なことを見つけて知らせる。

やさしい英語で： To point out or signal that something has happened or needs attention.

• The software flagged an error.
• The report flags several problems with the plan.
• Her bank flagged an unusual payment yesterday.

使い方： flag something as something (The system flagged the payment as suspicious.)

類義語： identify, signal, highlight

よく使う表現： flag an error, flag a problem, flag something as something