NOTE: can be singular or plural
NOTE: usually refers to a tangible plan, such as a document
They are reviewing a set of proposals for a new high-speed rail system.
John submitted his thesis proposal to his advisor on Friday.
WordNet 3.0 Sense Numbers: 1
Commentary: PROPOSAL[+action][+speech][+offer][+marriage] marriage proposal, proposal of marriage - an offer of marriage
NOTE: a specialized narrow sense of Sense 3
She waited six years for his proposal.
His proposal was posted on the billboard at the stadium.
WordNet 3.0 Sense Numbers: 2
Commentary: PROPOSAL[+event][+action][+speech][+suggestion] the act of making a proposal
NOTE: always occurs in the singular
NOTE: implies a specific time and place of speaking
They listened to her proposal.
Her proposal was two hours long.
His proposal during the meeting yesterday was met with resistance.
WordNet 3.0 Sense Numbers: 3