A plan or proposal; a scheme. See Synonyms at plan. An undertaking requiring concerted effort: a community cleanup project; a government-funded irrigation project. An extensive task undertaken by a student or group of students to apply, illustrate, or supplement classroom lessons. A housing project. To thrust outward or forward: project one's jaw in defiance. To throw forward; hurl: project an arrow. To send out into space; cast: project a light beam. To cause (an image) to appear on a surface: projected the slide onto a screen. Mathematics To produce (a projection). To direct (one's voice) so as to be heard clearly at a distance. Psychology To externalize and attribute (an emotion or motive, for example) unconsciously to someone or something else in order to avoid anxiety. To convey an impression of to an audience or to others: a posture that projects defeat. To form a plan or intention for: project a new business enterprise. To calculate, estimate, or predict (something in the future), based on present data or trends: projecting next year's expenses. To extend forward or out; jut out: beams that project beyond the eaves. See Synonyms at bulge. To direct one's voice so as to be heard clearly at a distance.