Answer: STD

AnswerCrossword Clue
STDTime zone word: Abbr.
STDThe "S" in EST: Abbr.
STDTransmission type: Abbr.
STDEST part: Abbr.
STDBenchmark: Abbr.
STDNot irr.
STDCST part: Abbr.
STDPart of SOP: Abbr.
STDKind of time: Abbr.
STDPart of PST: Abbr.
STDReg.
STDPar for the course: Abbr.
STDYardstick (abbr.)
STDModel (abbr.)
STDPart of EST (abbr.)
STDTransmission type (abbr.)
STDGold or silver (abbr.)
STDPart of CST (abbr.)
STDShort yardstick
STDPart of PST (abbr.)
STDNo-frills: Abbr.
STDUniversal meas.
STDPart of EST
STDAvg.
STDPt. of SOP
STDEST pt.
STDChild, jokingly, to some who don't want children: Abbr.
STDNorm (abbr.)
STDCriteriod (abbr.)
STDNormal (abbr.)
STDBenchmark (abbr.)
STDMeas. of normal
STDBenchmark: abbr.
STDPart of EST: Abbr.
STDCriterion: Abbr.
STDNorm: Abbr.
STDAvg. level
STDTime abbr.
STDPart of CST: Abbr.
STDPart of MST: Abbr.