ダイアグラムdaiaguramu

1. noundiagram

• Related時刻表じこくひょうNeutralA table of departure and arrival times for trains and buses; the everyday word for a timetable. 「ダイアグラム」 can also mean a chart or diagram in general.
• RelatedダイヤNeutralShort form for a train diagram or schedule, as in 「ダイヤが乱れる」; more casual than 「ダイアグラム」, which is the more formal term.
• RelatedタイムテーブルNeutralA loanword meaning timetable, used mostly for event schedules.

Use 「ダイアグラム」 for diagrams and for train operation diagrams. For train times say 「ダイヤ」 in casual speech, or 「時刻表」 for the timetable; 「タイムテーブル」 suits event schedules.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 運転うんてんの計画けいかくを記しるした図表ずひょう。また、その計画けいかく。