The initial idioms of the letter S

stand for	stand guard
stand in	stand oil
stand out	stand pat
stand sentinel	stand still
stand up	stand watch
stand-alone	standard
Standard and Poor's	Standard and Poor's Index
standard atmosphere	standard candle
standard cell	standard deviation
standard gauge	standard generalized markup language
standard of life	standard of living
standard of measurement	standard operating procedure
standard poodle	standard pressure
standard procedure	standard schnauzer
standard temperature	standard time