Choose the word which is different from the rest.

Metre
Furlong
Yard
Mile E. Acre

The answer is E, acre. The other options are all units of length, while acre is a unit of area.

A metre is a unit of length in the International System of Units (SI). It is defined as the distance that light travels in a vacuum in 1/299,792,458 of a second.

A furlong is a unit of length equal to 1/8 of a mile, or 201.168 metres. It is used in horse racing and other sports.

A yard is a unit of length equal to 0.9144 metres. It is used in the imperial and US customary systems of measurement.

A mile is a unit of length equal to 1.609344 kilometres. It is used in the imperial and US customary systems of measurement.

An acre is a unit of area equal to 4,840 square yards or 43,560 square feet. It is used in the imperial and US customary systems of measurement.