(v. i.) To hum; to boom.

Carling float access accession accretion accrual accrue accruement accumulate accumulation addition advance aggrandizement amplification appreciate appreciation arch dam ascent augmentation awake the dead backfire backstop ball the jack balloon ballooning balsa balsa raft bamboo curtain bang bank bar bark barrage barrel barrier batten bawl be reflected be sent back beam bear-trap dam beaver dam bellow birr blare blast blast the ear blat bloat bloating bloom blossom blowout blowup blubber board bob bombilate bombinate boom booming booming economy boost bottoming out bounce back bowl along bray breakwater breastwork breathe breed breeze breeze along brick wall broaden broadening brush buffer buildup bulkhead bull market bulwark bum buoy burgeon burgeoning burr burst business cycle business fluctuations bust buzz cackle cannonade cant hook cast loose chant chirp clap clap on ratlines claw bar clear hawse clip cofferdam coo cooling off cork crack crank crash crescendo crisis crow crowbar cut along cut loose dam deafen defense depression detonation develop development dike din discharge ditch downturn drawl drone earthwork echo echo back economic cycle economic expansion economic growth edema elevation embankment enlargement exclaim expanding economy expansion explode explosion extension fatten fence fill the air flare flash fleet flit float flood flourish flower flute fly fly low foot fulguration fulmination gain gain strength gasp gate get ahead go fast go up gravity dam greatening groin grow grow fat growl growling growth grumble grumbling grunt gush handspike haul haul down heave heave apeak heave round heave short high growth rate highball hike hiss hum hydraulic-fill dam increase increment inflation intensify iron crow iron curtain jam jetty jimmy jump kedge keen land-office business lay lay aloft leap leaping weir levee lever life buoy life preserver life raft lilt limb log logjam low make knots market expansion marlinespike milldam moat mole mound mount mounting multiplication multiply mumble murmur mutter nip outrigger outstrip the wind pant parapet peak peaking peal peavey pedal pinch bar pipe pontoon portcullis pour it on prize productiveness profitability progress