complement (n.)
- accession
- accessory
- accompaniment
- addendum
- addition
- additive
- adjunct
- adjuvant
- aggregate
- all
- allowance
- ally
- analogue
- annex
- annexation
- answer
- appanage
- appendage
- appurtenance
- assemblage
- associate
- attachment
- attribute
- augmentation
- band
- battalion
- bellyful
- bevy
- body
- brigade
- brother
- bumper
- bunch
- cabal
- capacity
- cast
- charge
- chips
- clique
- coda
- cognate
- cohort
- companion
- company
- completion
- concomitant
- confirmation
- congenator
- congener
- consummation
- contingent
- continuation
- coordinate
- corollary
- corps
- correlate
- correlative
- correspondent
- coterie
- counterpart
- covey
- crew
- crowd
- crush
- cutting
- deckhand
- detachment
- detail
- division
- eight
- eleven
- enhancement
- enrichment
- equivalent
- extension
- extrapolation
- faction
- fellow
- fill
- filler
- fireman
- five
- fixture
- fleet
- function
- gang
- group
- grouping
- gunner
- hand
- image
- increase
- increment
- junta
- lading
- like
- likeness
- load
- makeweight
- mate
- mob
- modifier
- mouthful
- movement
- navigator
- nine
- object
- obverse
- offshoot
- oiler
- outfit
- pack
- package
- parallel
- party
- pendant
- perfect
- perfection
- phalanx
- picture
- platoon
- posse
- predicate
- purser
- qualifier
- quorum
- quota
- reciprocal
- regiment
- reinforcement
- reserves
- roustabout
- salon
- set
- similitude
- simulacrum
- sister
- skinful
- slot
- snip
- snips
- squad
- stable
- steward
- stewardess
- stoker
- strata
- string
- structure
- subject
- such
- supplement
- syntax
- tailpiece
- tally
- team
- tribe
- troop
- troupe
- twin
- varsity
- watch
- wing
- yeoman
complement (v.)
- accession
- aggregate
- all
- allowance
- ally
- annex
- answer
- associate
- attribute
- augment
- band
- body
- brigade
- bunch
- cabal
- cast
- charge
- chips
- companion
- company
- complete
- coordinate
- correlate
- correspond
- cram
- crew
- crowd
- crush
- detail
- eight
- enhance
- fill
- five
- fleet
- function
- gang
- group
- hand
- image
- increase
- like
- load
- mate
- mob
- nine
- object
- outfit
- pack
- package
- parallel
- party
- perfect
- picture
- predicate
- reciprocate
- regiment
- set
- slot
- snip
- stable
- string
- structure
- subject
- supplement
- tally
- team
- troop
- twin
- watch
- wing
