overestimate

verb overestimate

• underestimate — to estimate at too low a value, rate, or the like.
• abridge — to reduce the length of (a written work) by condensing or rewriting
• compress — When you compress something or when it compresses, it is pressed or squeezed so that it takes up less space.
• condense — If you condense something, especially a piece of writing or speech, you make it shorter, usually by including only the most important parts.
• contract — A contract is a legal agreement, usually between two companies or between an employer and employee, which involves doing work for a stated sum of money.