The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the caesium frequency, Δν Cs, the unperturbed ground-state hyperfine transition frequency of the …

The meaning of SECOND is next to the first in place or time. How to use second in a sentence.

SECOND definition: 1. immediately after the first and before any others: 2. the position in which a person finishes a…. Learn more.

Second definition: next after the first; being the ordinal number for two.. See examples of SECOND used in a sentence.

Jun 5, 2025 · The second volume in "The Lord of the Rings" series is called "The Two Towers". You take the first one, and I'll have the second . 1963 , Margery Allingham , “Eye Witness”, in …

Define second. second synonyms, second pronunciation, second translation, English dictionary definition of second. n. 1. a. A unit of time equal to one sixtieth of a minute. b. The time …

What does SECOND mean? This dictionary definitions page includes all the possible meanings, example usage and translations of the word SECOND. "do I hear a second?" (Parliamentary …

Master the word "SECOND" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.

A light flashing once per second. The second (symbol: s), is a unit of time. There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. This tradition dates back to the …

SECOND definition: 1. referring to the person, thing, or event that comes immediately after the first: 2. 2nd written…. Learn more.