overture
I
noun
advance, approach, beginning, bid, condicio, exordium, foreword, initiative, introduction, invitation, motion, offer, opening of negotiations, preamble, preface, preliminary, preliminary negotiation, prelude, presentation, proem, proffer, proposal, proposition, tender
II
index
bid, invitation, preface, prelude, proposal (suggestion), proposition, threshold (commencement)
Burton's Legal Thesaurus.
William C. Burton.
2006