zòng​xiàng

longitudinal

纵向 (縱向) zòng​xiàng
longitudinal noun
involving the study or comparison of data over a period of time

This longitudinal study tracked changes in the lives of respondents over ten years.

vertical noun
oriented in a vertical or lengthwise direction

A vertical blue stripe appeared on the screen.

Frequency

Movie subtitles
0.510 per million appears in 0% of films
Written text
5.05 per million

Sources

Definitions
CC-CEDICT