candidate;  contender;  prospect;  candidacy;  candidature;  nomination
 supply;  supplying;  replenishment
 assistance;  support;  subsidy;  supplement;  auxiliary;  subsidiary
 replenishment;  supplementation;  supplement;  replacement;  refilling
 aid;  help;  assistance;  assistant;  counselor;  counsellor
 candidacy;  standing as a candidate;  bidding (to host an event, e.g. the Olympics)
 correction;  revision;  compensation (e.g. to a pendulum)
 reinforcement;  strengthening
 complementation;  supplementation;  completion
 compensating;  making up for;  supplementation
 filling a vacancy;  supplementation;  substitute;  deputy;  alternate
 assistant ...;  probationary ...
 hydration;  rehydration;  to hydrate;  to rehydrate;  to moisturize
 assistant;  adjunct;  lieutenant
 favorite (top choice) for the championship (favourite);  best bet for the title
 guidance;  protective custody
 assistance payment;  subsidiary aid
 candidate (for an election)
 proposed site;  site chosen
 most likely contender;  prime candidate;  top prospect;  leading candidate
 supplementary explanation
 supplementary classes or lectures
 major contender;  strong (leading) candidate;  front runner
 military cadet;  officer cadet
 rival candidate;  opposing candidate
 supply route;  supply road;  communications (military)
 supply base;  storage depot
 training wheels;  stabilizers
 supply vessel;  replenishment oiler;  replenishment vessel
 compensation payment;  reparation
 supply vessel;  supply ship;  cargo spacecraft
 extending (e.g. a book);  augmenting;  enlarging;  supplementing
 adjust (by supplementing)
 auxiliary device;  auxiliary equipment
 revised budget;  supplementary budget
 supplement;  addendum;  appendix
 supplementary information
 complementary;  supplementary
 special election;  by-election
 nutritional supplement;  dietary supplement
 oral rehydration solution
 supportive (role);  assistant;  assisting
 mending;  revision;  supplementation;  (dental) prosthesis;  prosthetic
 complementary color;  complementary colour
 supplement;  appendix;  addendum
 dietary supplement (for sports);  energy supplement;  nutritional supplement
 retouch;  correction;  improvement
 auxiliary seat;  booster seat;  baby seat
 rehydration;  supply of water
 complementary set;  complement
 candidate for vice-president;  running mate (US)
 giving the Emperor advice on affairs of state;  assistance;  counsel
 enlarged and revised edition
 to appoint;  to assign;  to designate
 bye-election;  by-election
 assistance dog;  helper dog
 camera shake compensation;  image stabilization;  input stabilization (touchscreen, pen, etc.)
 complementarity;  complementation
 auxiliary storage;  secondary storage
 supplement;  supplementary volume
 revising (and supplementing);  expansion
 assistant judge;  judge-in-training
 assisted reproductive technology;  ART
 supportive device (for the disabled, e.g. prosthetic limb);  assistive device
 addition (to a text);  additional entry (e.g. to a database)
 spare player;  substitute;  sub;  benchwarmer
 simultaneously running for a seat in a single-member constituency and a seat in a proportionally represented constituency
 external storage;  auxiliary storage
 supplementary kanji;  5,801 kanji coded in JIS X 0212 to supplement those in JIS X 0208
 revising (and supplementing)
 complement (blood proteins)
 list of candidates;  slate;  list of nominees
 hormone replacement therapy
 complementary therapy;  complementary medicine;  alternative medicine
 support;  supplement;  help
 supplementary explanation;  supplementary information
 adding something to or altering a finished work of art;  something added or altered in this manner
 walker;  walking frame;  Zimmer;  Zimmer frame
 subsidiary verb (in Japanese);  auxiliary verb
 subsidiary coin;  subsidiary money
 assistance dog;  helper dog
 party appointee in a safe constituency; (lit.) parachute candidate
 revitalizing treatment that stimulates the organs or the meridians (in Chinese medicine)
 error correction;  error detection and correction
 adaptive optics (esp. in a telescope)
 government subsidy;  state aid;  state assistance
 ever unsuccessful candidate;  persistent candidate
 further education;  supplementary education
 prefixed unit of measurement (i.e. millimeter, kilogram, etc.);  supplementary SI unit (radian and steradian)
 candidate for assassination
 adjuvant;  revitalizing stimulant (in Chinese medicine)
 supplementary or additional fertilizer (fertiliser)
 auxiliary inflecting word;  in Japanese, auxiliary verbs and adjectives
 person subject to a limited guardianship
 auxiliary intervenor (in a lawsuit)
 automated cargo spacecraft;  unmanned resupply spacecraft
 complementary distribution
 linear interpolation;  straight-line interpolation
 object complement;  objective complement
 forward arming and refueling point
 objective complement;  noun or adjective following and modifying the direct object
 subsidized interest payments;  subsidised interest payments
 (pharmaceutical) candidate compound
 dispersion compensation calculation sheet
 assisted reproductive technology;  ART
 complementary metal-oxide semiconductor;  CMOS
 fractional currency (e.g. cents, pence)
 international auxiliary language
 classical form of i-adjective inflection formed by contraction of the "ku" adverbial form with the classical verb "ari" ("aru")
 Assistant Secretary of State
 left ventricular assist device;  LVAD
 Industrial Accident Compensation Insurance Act
 following supplements;  supplementary information below
 compensating for one's shortcomings by incorporating others' strong points
 diminished radix complement;  radix-minus-one complement
 corroboration;  supporting evidence
 workers' accident compensation insurance
 auxiliary inflecting word (in Japanese)
 auxiliary intervention (in a lawsuit)
 brief (legal, patent, etc.)
 supplementary symbol (number, punctuation, etc.)
 compensator;  compensating device
 subsidiary adjective (in Japanese);  auxiliary adjective
 compensation to the bereaved family
 health supplement;  dietary supplement
 quit-smoking drug;  smoking-cessation aid;  stop-smoking medication
 supplementary symbol (number, punctuation, etc.)
 appointment to an official post
 revised and enlarged (edition)
 supplementation, causing bowel movements, heating, and cooling (four main treatments of traditional Chinese medicine)
 locking the barn door after the horse has bolted;  doing something too late; (lit.) mending the pen after the sheep are lost
 expanded edition (of a dictionary)