(education) A single large room used for teaching a large group of pupils of varying ability, who are typically divided into smaller groups.

plural of open-book contract

A contract in which the buyer and seller of work or services agree on (i) which costs are remunerable and (ii) the margin that the supplier can add to these costs. The project is then invoiced to the customer based on the actual costs incurred plus the agreed margin.

(slang) A flashy and dishonest trader.

present participle of open the range

(military) To draw oneself or one's vehicles (warships, tanks, aircraft, etc.) out of range of the enemy's fire.

simple past tense and past participle of push against an open door

present participle of push against an open door

Third-person singular simple present indicative form of push against an open door

Synonym of monito del monte (“small South American marsupial”)