| 1 | 秒 | 秒 | miǎo | miao3 | second (unit of time); arc second (angular measurement unit); (coll.) instantly | | |
| 2 | 秒秒钟 | 秒秒鐘 | miǎo miǎo zhōng | miao3 miao3 zhong1 | in a matter of seconds; swiftly; rapidly | | |
| 3 | 争分夺秒 | 爭分奪秒 | zhēng fēn duó miǎo | zheng1 fen1 duo2 miao3 | lit. fight minutes, snatch seconds (idiom); a race against time; making every second count | | |
| 4 | 飞秒 | 飛秒 | fēi miǎo | fei1 miao3 | femtosecond, fs, 10^-15 s | | |
| 5 | 微秒 | 微秒 | wēi miǎo | wei1 miao3 | microsecond, µs, 10^-6 s | | |
| 6 | 三秒胶 | 三秒膠 | sān miǎo jiāo | san1 miao3 jiao1 | superglue | | |
| 7 | 皮秒 | 皮秒 | pí miǎo | pi2 miao3 | picosecond, ps, 10^-12 s | | |
| 8 | 奈秒 | 奈秒 | nài miǎo | nai4 miao3 | nanosecond, ns, 10^-9 s (Tw); PRC equivalent: 纳秒 | | |
| 9 | 纳秒 | 納秒 | nà miǎo | na4 miao3 | nanosecond, ns, 10^-9 s (PRC); Taiwan equivalent: 奈秒 | | |
| 10 | 秒钟 | 秒鐘 | miǎo zhōng | miao3 zhong1 | (time) second | | |
| 11 | 秒针 | 秒針 | miǎo zhēn | miao3 zhen1 | second hand (of a clock) | | |
| 12 | 秒杀 | 秒殺 | miǎo shā | miao3 sha1 | (Internet) flash sale; (sports or online gaming) rapid dispatch of an opponent | | |
| 13 | 秒看 | 秒看 | miǎo kàn | miao3 kan4 | to take in at a glance | | |
| 14 | 秒懂 | 秒懂 | miǎo dǒng | miao3 dong3 | to understand instantly | | |
| 15 | 秒差距 | 秒差距 | miǎo chā jù | miao3 cha1 ju4 | parsec (astronomy) | | |
| 16 | 秒表 | 秒表 | miǎo biǎo | miao3 biao3 | stopwatch | | |
| 17 | 每分每秒 | 每分每秒 | měi fēn měi miǎo | mei3 fen1 mei3 miao3 | all the time | | |
| 18 | 角秒符号 | 角秒符號 | jiǎo miǎo fú hào | jiao3 miao3 fu2 hao4 | double prime symbol (″) (math., linguistics etc) | | |
| 19 | 毫秒 | 毫秒 | háo miǎo | hao2 miao3 | millisecond, ms | | |
| 20 | 分秒必争 | 分秒必爭 | fēn miǎo bì zhēng | fen1 miao3 bi4 zheng1 | seize every minute and second (idiom); not a minute to lose; every moment counts | | |