What does トンネル mean?
トンネル is a Japanese noun meaning “tunnel” in English. It can also be translated as “letting a grounder go through one's legs” depending on context. It is written as トンネル in hiragana, and tonneru in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
汽車はトンネルを通り抜けた。
The train traversed a tunnel.