also watch-word, c. 1400, "password," from watch (n.) in the military sense of "period of standing guard duty" + word (n.). In the sense of "motto, slogan" it dates from 1738.
实用例句
1. Quality is our watchword.
质量是我们的口号。来自《权威词典》
2. We gave the watchword, and the sentinel let us pass.
我们说出口令, 哨兵就把我们放过去了.来自《现代汉英综合大词典》
3. Today the watchword is " Learn through playing ".
