a statement or assertion that expresses a judgement or opinion

the proposition that high taxation is undesirable

a suggested scheme or plan of action, especially in a business context

a detailed investment proposition

a project, task, idea, etc. considered in terms of its likely success or difficulty

setting up your own business can seem an attractive proposition

make a suggestion of sex to (someone), especially in an unsubtle way

she had been propositioned at the party by a subeditor with bad breath