| 秒 | [  ]    second (unit of time), arc second (angular measurement unit), (coll.) instantly | 
| 秒差距 | [ chā jù  ]    parsec (astronomy) | 
| 秒懂 | [ dǒng  ]    to understand instantly | 
| 秒殺 | [ shā  ]    (Internet) flash sale, (sports or online gaming) rapid dispatch of an opponent | 
| 秒看 | [ kàn  ]    to take in at a glance | 
| 秒秒鐘 | [ zhōng  ]    in a matter of seconds, swiftly, rapidly | 
| 秒表 | [  ]    stopwatch | 
| 秒針 | [ zhēn  ]    second hand (of a clock) | 
| 秒鐘 | [ zhōng  ]    (time) second | 
| ⇒ 三秒膠 | [ sān  ]    superglue | 
| ⇒ 分秒必爭 | [ fēn bì zhēng  ]    seize every minute and second (idiom); not a minute to lose, every moment counts | 
| ⇒ 奈秒 | [ naì  ]    nanosecond, ns, 10^-9 s (Tw), PRC equivalent: 納秒|纳秒[na4 miao3] | 
| ⇒ 微秒 | [ weī  ]    microsecond, µs, 10^-6 s | 
| ⇒ 每分每秒 | [ meǐ fēn meǐ  ]    all the time | 
| ⇒ 毫秒 | [ haó  ]    millisecond, ms | 
| ⇒ 爭分奪秒 | [ zhēng fēn duó  ]    lit. fight minutes, snatch seconds (idiom); a race against time, making every second count | 
| ⇒ 皮秒 | [ pí  ]    picosecond, ps, 10^-12 s | 
| ⇒ 秒秒鐘 | [ zhōng  ]    in a matter of seconds, swiftly, rapidly | 
| ⇒ 納秒 | [ nà  ]    nanosecond, ns, 10^-9 s (PRC), Taiwan equivalent: 奈秒[nai4 miao3] | 
| ⇒ 角秒符號 | [ fú haò  ]    double prime symbol (″) (math., linguistics etc) | 
| ⇒ 飛秒 | [ feī  ]    femtosecond, fs, 10^-15 s |