Crossword clues for Principle 4 lettersAnswerClueECHOBasic principle of radar.ECHOPrinciple of radar.LIFOAccounting principle, for shortISMSSystems of principlesSEEDFirst principle.LAWSPrinciples.DONO___ harm (Hippocratic principle)YANGChinese principleKISSPopular version of a design principle acronym spelled out by the starts of this puzzle's four longest answersOHMS__ Law: electrical principleYANGMasculine principle of Chinese philosophySOULVital principle.ELEMDealing with first principles: Abbr.ECHOPrinciple of sonar.JAINBeliever in the nonviolent principle of "ahimsa"BODYPrinciple partECHOSonar principleRULEGeneral principleOHMS___ Law: electrical principleRULEGolden principleMARXThose are my principles. If you don't like them I have others speakerDONO__ harm: Hippocratic Oath principleABCSFirst principlesBASEFundamental principleESSE___ est percipi (George Berkeley principle)HUMEAn Enquiry Concerning the Principles of Morals writerDATAPrinciples.KANTHis principle was the categorical imperative.ECHOThe principle of radar.RANKFirst principle of protocol.RULEGame principleABCSFundamental principlesYANGBright principleECHORadar principleKEEPStart to KISS, as a matter of principle?FURSThey go against PETA's principlesMAINPrincipleOHMS___ law (principle of electricity)YANGPositive principleABCSPrinciplesRULEPrincipleABCSBasic principlesYANGMasculine principleCODESet of principlesRULEPrinciple governing play, as in golfMASSOne side of a physics equivalence principleYINSFeminine principlesABCSFoundational principlesEROSJung's "principle of relationship"SCANConform to metrical principles.