The best replacement for proposal is contract.

The best alternatives to proposal are rated as following:
★★★★★  contract
★★★  proposition
★★★  bid
★★  quote
★★  report
★★  business plan
★★  bankruptcy
★  estimate
★  offer
★  formal research
★  request for quote
★  sow
★  proposal
★  petition
  suggestion
  invitation for bid
  request for quotation
  statement of work
  rfp
  request for qualifications
  tender
  research paper
  research report
  recommendation
  quotation
  position
  business case
  letter intent
  prospectus
  research project
  external proposal

Your alternative for proposal is not listed? Suggest!
Speaking about proposal, one probably shouldn't forget about ring.

Other search terms related to proposal and their ratings are:
★★★★★ ring
You have in mind a companion for proposal and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of proposal in all years. Click on graph for more.
proposal
contract
proposition