shorthand

1. N-UNCOUNT Shorthand is a quick way of writing and uses signs to represent words or syllables. Shorthand is sometimes used by secretaries and journalists to write down what someone is saying. 速记法

Ben took notes in shorthand. 本用速记法记笔记。

2. N-UNCOUNT You can use shorthand to mean a quick or simple way of referring to something. 简约表达法[also 'a' N]

Laslett uses the shorthand of "second age" for the group of younger people who are creating families. 拉斯莱特用“第二代”来简单指称那些更年轻、正在组建家庭的人。