extension (n.)

• access
• accession
• accessory
• accompaniment
• accretion
• accrual
• accruement
• accumulation
• acreage
• addendum
• addition
• additive
• adjunct
• adjuvant
• advance
• aggrandizement
• alternate
• ambit
• amplification
• amplitude
• annex
• annexation
• appanage
• appendage
• appendix
• appreciation
• appurtenance
• area
• arm
• ascent
• attachment
• augmentation
• ballooning
• bearing
• bigness
• block
• body
• boom
• boost
• breadth
• broadening
• buildup
• bulk
• caliber
• capacity
• coda
• coloring
• compass
• complement
• comprehensiveness
• concomitant
• connotation
• consequence
• continuance
• continuation
• continuity
• continuum
• corollary
• coverage
• crescendo
• denotation
• deployment
• depth
• descent
• development
• diameter
• dimension
• dispersion
• distance
• distension
• drift
• edema
• effect
• elevation
• ell
• elongation
• emptiness
• endurance
• enlargement
• essence
• expanse
• expansion
• extensiveness
• extent
• extrapolation
• field
• fixture
• flare
• flood
• following
• force
• gain
• gauge
• girth
• gist
• greatness
• growth
• gush
• height
• hike
• hiking
• idea
• impact
• implication
• import
• increase
• increment
• infinity
• inflation
• intension
• jump
• largeness
• leap
• length
• lengthening
• lengthiness
• line
• lineage
• lingering
• longitude
• longness
• magnification
• magnitude
• maintenance
• mass
• meaning
• measure
• measurement
• mileage
• mounting
• mouthpiece
• multiplication
• nothingness
• offshoot
• orbit
• order
• overtone
• pendant
• perpetuation
• perpetuity
• perseverance
• persistence
• pertinence
• phone
• pith
• point
• posteriority
• postposition
• procession
• procrastination
• production
• productiveness
• progress
• progression
• proliferation
• prolongation
• proportion
• proportions
• protraction
• purport
• pursuance
• purview
• radius
• raise
• raising
• range
• reach
• receiver
• reference
• referent
• reinforcement
• relation
• relevance
• repetition
• rise
• rotation
• run
• scale
• scope
• sense
• sequence
• series
• significance
• signification
• size
• space
• span
• sphere
• spirit
• splay
• spread
• spreading
• strain
• stretch
• stretching
• subjunction
• substance
• succession
• successiveness
• suffixation
• sum
• supplement
• surface
• surge
• sustenance
• sweep
• swelling
• tailpiece
• telephone
• telephony
• tenor
• tension
• tract
• transmitter
• tumescence
• undertone
• up
• upping
• upsurge
• upturn
• value
• volume
• waxing
• way
• widening
• width
• wing
• yardage