Wi-Fi
ワイファイ
解説 Definition
ワイファイ
A technology that allows computers, phones, and other devices to connect wirelessly to a local network, often providing access to the internet. The term can also refer informally to the wireless network or connection available in a particular place.
覚え方のコツ Memory Tip
Wi-Fi は無線で機器をネットワークにつなぐ技術・接続を表す名称で、何かの正式表現の頭文字ではありません。free Wi-Fi、connect to Wi-Fi、use the Wi-Fi、The Wi-Fi is fast の組み合わせで覚えます。internet は世界的な通信網、Wi-Fi はそこへ接続する手段の一つなので、両者を同じ意味だと思わないことが大切です。
Remember Wi-Fi through situations where you need a wireless connection: free Wi-Fi, connect to Wi-Fi, use the Wi-Fi, and The Wi-Fi is fast here. The term is a created brand name, not an abbreviation that must be expanded into a longer technical phrase. Keep it distinct from internet: Wi-Fi is one way for a device to join a local network, while the internet is the wider global network that connection may reach. The spelling Wi-Fi traditionally uses capital W and F with a hyphen.
例文
The Wi-Fi is fast here.
ここのワイファイは速いです。
Can I use the Wi-Fi?
ワイファイを使ってもいいですか？
Wi-Fi の類義語・関連語
Wi-Fi の語源・成り立ち Etymology
無線通信の技術を広めるためにつくられたブランド名です。何かの正式な英語表現を短くした略語ではありません。
Wi-Fi was created as a brand name for interoperable wireless networking technology. It was chosen as a memorable commercial label and is not officially an abbreviation of “wireless fidelity” or another full technical expression. The name became widely used not only for the technology but also for a local wireless network or its connection. Its traditional branded spelling is Wi-Fi, although informal variants such as WiFi are also seen.
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