determine, fix, establish, decide
定 centers on making something firm and settled: determining a course, fixing a value, establishing a rule, or deciding an outcome. All its meanings share the idea of bringing something from an unsettled state into a stable, definite one.
定 combines 宀 (roof, house) with a lower element that is a simplified form of 正 (correct, straight). The idea is of something being set straight or made correct under a roof, hence 'determine, fix, establish'.
Under a roof (宀), a carpenter uses a level to make sure everything is straight and fixed in place. That act of setting things right is 定: to determine, fix, and establish.
For テイ, imagine a table (テーブル, tēburu) being fixed firmly in place under the roof. The 'tei' sound from 'table' (テイ) helps you remember the reading.
plans; arrangement; schedule; program; programme; expectation; estimate
establishment; creation; posing (a problem); setting (movie, novel, etc.); scene
limit; restriction
decision; determination
designation; specification; assignment; appointment; pointing at
specific; particular; designated; special
stability; steadiness; consistency; equilibrium; balance; composure
fixed period; fixed term
fixing (in place); being fixed (in place); securing; anchoring; fastening down
decision; settlement; confirmation; establishment
authorization; authorisation; acknowledgment; acknowledgement; certification; recognition
denial; negation; repudiation; disavowal
to fix; to settle; to standardize; to regularize
stipulation; prescription; provision; regulation; rule
definition
hypothesis; supposition; assumption; expectation; anticipation
judgement; judgment; decision; ruling; finding; adjudication; verdict; call
measurement
sticking (in one place, position, etc.); settling; fixing; adherence
instability; insecurity; crankiness
arrangement; pact; agreement
standard item; usual thing; (a) classic; go-to choice; staple; regular fixture; standard procedure; convention
presumption; assumption
judgement; judgment; expert opinion; appraisal
selection
list price; regular price; established price
official certification; official approval; inspection; verification; examination
to decide; to determine
fixed time; regular time; scheduled time; appointed hour
affirmation
assumption; supposition; hypothesis
tentative decision; unofficial offer (esp. job offer); informal offer
enactment; establishment; creation
definite; final; decisive; conclusive
(compulsory) retirement age; age limit
fixed number (of people); prescribed number (of regular personnel, students, etc.); quota; numerical limit; complement
set meal; special (of the day)
revision (of a rule, price, etc.); alteration; change
fixed number; quorum (for an assembly)
not yet fixed; undecided; pending; TBD
formulation (of a plan, policy, etc.); decision; settling on
as expected; just as one thought; as feared; sure enough
provisional; temporary; tentative; interim
fixed amount (of money); fixed sum; flat sum
calculation; computation; counting; reckoning; count
legal; designated by law
conclusion; decision; judgement; declaration
settlement; permanent residency
established reputation
prescribed; designated; appointed; fixed
assessment (of value, damages, etc.); revision (of a budget)
regular; ordinary (e.g. session of parliament)
to become settled; to be fixed
fixed form; regular shape
definite; sure
regular holiday; fixed day off; regular closing day
fixed quantity
unsettled; uncertain; indefinite; unfixed; variable; irregular; changeable
(measuring) ruler
established theory; accepted opinion; accepted explanation
decision; ruling; award; arbitration
calculation; estimation; computation
established; fixed; prearranged; predetermined
articles of incorporation; company statute
appointed time; timetable; schedule
fixed rate
official (rate, price, etc.); officially fixed
schedule; program; programme; itinerary
official discount (bank) rate
fixed cost; fixed expense
fixed assets
regular holiday; fixed day off; regular closing day
part time (school system)
regular service
commuter pass; season ticket
periodic; regular; routine
subscription (e.g. to a magazine)
term deposit; (fixed) time deposit
decision-making
limited time
gentlemen's agreement
configurable
protocol