What does 単一 mean?
単一 is a Japanese noun meaning “single, simple, sole” in English. It is written as 単一 in kanji, たんいつ in hiragana, and tan'itsu in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
ねじ、てこ、くさび、滑車などは単一機械と呼ばれる。
The screw, the lever, the wedge, the pulley, etc. are called simple machines.