forty-five

record

Preserved account or achievement

• singleOne in number
• jukeboxCoin-operated music player
• turntableRotating music player
• phonographGrooved disc audio player

platter · groove · analog · audiophile · needle · stylus · sleeve · spin

caliber

Bore diameter or quality

• pistolCompact one-handed firearm
• revolverPistol with rotating chamber
• handgunFirearm for single-hand use
• ColtYoung male equine

sidearm · ammunition · cartridge · holster · semi-automatic · magazine · round · Springfield

midlife

Halfway through adulthood

• middle-agedIn life's middle decades
• milestoneNotable event marking progress
• birthdayAnnual date of origin
• generationAge-defined peer group

boomers · retirement · seniors · maturity · crisis · transition · reflection · reassessment

integer

Number lacking fractions

• numeralSymbol denoting quantity
• oddUnusual or not even
• digitsSingle-place numerals
• arithmeticMathematics of basic operations

cardinal · ordinal · sum · count · sequence · mathematics

minutes

Sixty-second intervals

• half-hourThirty-minute span
• sessionScheduled time for activity
• commuteRegular work travel
• workoutStructured physical exercise

episode · interval · timer · countdown · lecture · meeting · halftime

degree

Unit of measurement

• angleGeometric measure of rotation
• diagonalSlanting line or path
• slantOblique angle or bias
• miterTall liturgical headdress

bevel · geometry · incline · slope · bisect · perpendicular · hypotenuse · isosceles