プログレッシブ和英中辞典(第4版)の解説
だんごう【談合】
❶〔話し合い〕consultation(s)（▼しばしば複数形）；(a) conference
談合する hold 「a conference [consultations] ((on))
談合ずくで
by mutual agreement
その件で彼らと談合した
We conferred with them about [on] that matter.
❷〔談合請負〕an illegal price-fixing agreement；〔落札の〕collusion (in bidding); bid-rigging
３社は談合して高い値段を決めた
The three firms conspired [《文》 colluded] to raise the price.
裏談合
secret price arrangements
談合入札
prearranged [collusive] bidding
談合入札が行われた
They discussed their bids in advance.