demote
verb [ T ] uk/dɪˈməʊt/ us/dɪˈmoʊt/
使降职，使降级
to lower someone or something in rank or position
The captain was demoted (to sergeant) for failing to fulfil his duties. 上尉因为没有完成任务被降职（为中士）。
Synonym: relegate
Opposites: advance boost (INCREASE)elevatepromote (RAISE)raise