1S or 1s may refer to:
*
1s electron
In quantum mechanics, an atomic orbital () is a function describing the location and wave-like behavior of an electron in an atom. This function describes an electron's charge distribution around the atom's nucleus, and can be used to calcul ...
, in an atomic orbital
*
Sabre (computer system)
Sabre Global Distribution System is a computer reservation system, travel reservation system owned by Sabre Corporation, which allows travel agents and companies to search, price, book, and ticket travel services provided by airlines, hotels, car r ...
's IATA code
* 1S, a series of
Toyota S engine
The Toyota S Series engines are a family of Straight-four engine, straight-four petrol (or CNG) Internal combustion engine, engines with displacements between 1.8 and 2.2 litres, produced by Toyota Motor Corporation from January 1980 to August 200 ...
s
* SSH 1S (WA); see
Washington State Route 502
State Route 502 (SR 502, officially known as the Battle Ground Highway) is a state highway in the U.S. state of Washington, serving the city of Battle Ground in Clark County. The highway travels due east from an interchange with Int ...
,
Washington State Route 503
State Route 503 (SR 503) is a state highway serving Clark and Cowlitz counties in the U.S. state of Washington. The highway travels north from a short concurrency with SR 500 in Orchards through Battle Ground, the eastern t ...
* One
shilling (British coin)
The United Kingdom, British shilling, abbreviated "1s" or "1/-", was a unit of currency and a denomination of Coins of the United Kingdom, sterling coinage worth of one Pound (currency), pound, or twelve Penny (British pre-decimal coin), pre-deci ...
See also
*
Shilling
The shilling is a historical coin, and the name of a unit of modern currency, currencies formerly used in the United Kingdom, Australia, New Zealand, other British Commonwealth countries and Ireland, where they were generally equivalent to 1 ...
*
Second
The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of U ...
*
Ones (disambiguation) Ones may refer to:
* ''Ones'' (album), by Selena, 2002
* The Ones, New York electronica group
* "The Ones" (''30 Rock''), an episode of ''30 Rock''
* In music, single bars of alternating solos (as in "trading ones"); see Rhythm section#Musical r ...
*
S1 (disambiguation)
{{Letter-NumberCombDisambig