subsidence (n.)
- avalanche
- cadence
- catenary
- cessation
- coast
- collapse
- crash
- deadlock
- deceleration
- declension
- decline
- decrescendo
- diminuendo
- dive
- downturn
- droop
- drop
- dwindling
- ebb
- ebbing
- fall
- glide
- glissade
- glissando
- halt
- landslide
- landslip
- lapse
- lock
- lowering
- plunge
- remission
- retreat
- sag
- sideslip
- skid
- slide
- slip
- slippage
- slowdown
- slump
- stand
- standstill
- stop
- submergence
- swag
- wane
- waning