[-线]

Jyutping gei1 sin3
Pinyin jī xiàn

Definitions (CC-CEDICT)
  1. baseline (surveying, budgeting, typography etc)
  2. (math.) base (of a triangle)
Definitions (Wiktionary)
  1. noun
    baseline
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)