一線
Meanings
Noun
1. one line; (a) single line
2. boundary; line (between things); distinction
3. forefront; front line
Kanji used
Pitch accent
いっせん
Used in vocabulary
Examples1
彼 は 愛想 の いい 奴 だ が 気軽に 踏み込ませない 一線 を 持っていた。
He was an amiable fellow, but had a certain reserve that he would not let you casually trespass upon.