フィート
解説 Definition
(長さの単位)フィート
The plural of foot when used as a unit of length. One foot equals twelve inches, or exactly 0.3048 metres, and feet is used after numbers other than one to state measurements such as height, depth, or distance.
覚え方のコツ Memory Tip
feetはfoot「足、1フィート」の不規則な複数形で、母音がooからeeへ変わります。単数はone foot、複数はtwo feetのように使い、発音もfoot /fʊt/ に対してfeet /fiːt/ と異なります。six feet deepやten feet highのように、数値＋feet＋深さ・高さを表す形で覚えましょう。
Feet is the irregular plural of foot, whether foot means a body part or a unit of length. Do not add -s: change the vowel from oo to ee instead. The pronunciation changes too, from foot /fʊt/ to feet /fiːt/. Pair the forms with numbers: one foot, but two feet or six feet. For measurements, remember common patterns such as “six feet deep,” “ten feet high,” and “three feet wide.” These combinations connect the unit with the dimension being measured and help prevent the incorrect form “six foot” in ordinary predicative measurements.
例文
The pool is six feet deep.
そのプールは深さ6フィートです。
This wall is ten feet high.
この壁は高さ10フィートです。
feet の語源・成り立ち Etymology
foot（足、長さの単位）の複数形で、古英語のfōtに由来します。
Feet is the inherited irregular plural of foot, from Old English fōt. Its changed vowel reflects an old Germanic plural-forming process that affected the preceding vowel; related patterns survive in pairs such as tooth and teeth. When foot became the name of a unit based historically on the length of a human foot, the same plural feet continued to be used. In modern measurement, one foot is defined as twelve inches, exactly 0.3048 metres.
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