(a) action of completing 完成（指动作）: Completion of the building work is taking longer than expected. 建筑工程的竣工比预计的时间要长. (b) state of being complete 完成: The film is nearing completion. 电影制作即将完成. * [attrib 作定语] its completion date 完成的日期. 
(commerce 商) formal completing of a contract of sale （销售契约手续的）正式完成: You may move into the house on completion. 办完房屋买卖契约手续後, 你就可以搬进去.