Offer is the term used when one trader expresses an intention to buy an asset or financial instrument from another trader or institution.
The offer price is one of the prices often quoted in the buying and selling of financial assets. It represents the price at which you can buy an asset, and as such will usually be higher than the market price. It is the opposite of the bid, and can often be known as the ask.
The bid (the price at which you can sell an asset) is quoted as lower than the market price, and the difference between the two is known as the spread. In order to break even traders must take account of the spread: the trade will only break even once the price of the asset being traded has surpassed the sell price (for long trades) or buy price (for short trades).