;°C:degree Celsius, SI unit of temperature
;°F:degree Fahrenheit
== A ==
;A:ampere (amp), SI unit of electrical current
;A/B:measure of stability
;AC:alternating current
;ACH:Air changes per hour
;AH:ampere hours
;B:beam
;Bt:ballast
;BTU:British Thermal Unit
;BTU/h:British Thermal Units per hour
;CB:centre of buoyancy
;CCF:cold cathode fluorescent
;CCT:correlated colour temperature
;CFL:compact fluorescent light
;CFM:Cubic feet per minute
;CG:centre of gravity
;CRI:Colour Rendering Index
;cu:cup
;d:day
;D:displacement
;DC:direct current
;F:farad, SI unit of capacitance
;ft:foot
;GFCI: ground fault curcuit interrupter
;GZ:righting arm
;gal/d:gallons per day
;gal:gallon
;LCD:liquid crystal display
;LED:light emitting diode
;LOA:length over all
;LWL:length on the water line
;m:metre, SI unit of length
;mg:milligram
;nm:nanometer
;Pa:Pascal, SI unit of pressure
;Pc:Prismatic Coefficient
;psi:pounds per square inch
;RM:righting moment
;rpm:revolutions oer minute
;s:second
;SLR:Speed/Length Ratio
;tblsp:tablespoon
;tsp:teaspoon
;VDC:volts direct current
;W:watt
;WP:wetted area
;y:year