Answer: amplifying

AnswerCrossword Clue
amplifyingIncrease the volume of (sound), esp. using an amplifier
amplifyingIncrease the amplitude of (an electrical signal or other oscillation)
amplifyingMake multiple copies of (a gene or DNA sequence)
amplifyingEnlarge upon or add detail to (a story or statement)
amplifyingCause to become more marked or intense
amplifyingAMPLIFY, to enlarge (to make larger, also ENLARGEN)