postulate (n.)
- advance
- affirmation
- assertion
- assumption
- aver
- axiom
- basis
- breakthrough
- broach
- call
- center
- challenge
- circumstance
- claim
- conjecture
- core
- data
- datum
- dictate
- dictum
- elixir
- essence
- essential
- exordium
- fact
- flower
- focus
- foreword
- formula
- foundation
- frontispiece
- fundamental
- gist
- ground
- guesswork
- heart
- hypostasis
- hypothesis
- inference
- innovation
- introduction
- kernel
- launch
- law
- leap
- lemma
- marrow
- meat
- moot
- move
- nub
- nucleus
- overture
- pith
- plain
- pose
- posit
- position
- postulation
- preamble
- predicate
- preface
- prefix
- preliminary
- prelude
- premise
- presumption
- presupposition
- principle
- prolegomenon
- prolepsis
- prologue
- proposition
- quid
- quiddity
- quintessence
- requisition
- rule
- sap
- soul
- spirit
- start
- statement
- stuff
- substance
- sumption
- supposal
- supposition
- surmise
- theorem
- thesis
- truism
- truth
- verse
- voluntary
postulate (v.)
- advance
- affirm
- assert
- assume
- aver
- broach
- call
- center
- challenge
- claim
- conjecture
- core
- dictate
- exact
- fact
- flower
- focus
- ground
- heart
- introduce
- launch
- law
- leap
- moot
- move
- nub
- pith
- plain
- pose
- posit
- position
- preamble
- predicate
- preface
- prefer
- prefix
- prelude
- premise
- presume
- propose
- proposition
- propound
- recommend
- require
- requisition
- rule
- sap
- solicit
- spirit
- start
- stuff
- submit
- suggest
- surmise
- verse
