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Also, regular as clockwork. With extreme regularity, as in Ruth arrives every Wednesday morning just like clockwork, or You can count on his schedule, which is regular as clockwork, or Their assembly line runs like clockwork. This idiom alludes to the mechanical and therefore very regular action of a clock. [Second half of 1600s]
1. If something goes or runs like clockwork, it works very well and happens in exactly the way it is expected to. The journey there went like clockwork — flying out on Friday from Gatwick it took seven hours door-to-door. He soon had the household running like clockwork.
2. If someone does something like clockwork, they do it regularly, always at the same time. They would arrive like clockwork just before dawn. Every day at 3:00, like clockwork, he comes in here for a cup of coffee. Note: You can also say that someone does something, or that something happens, regular as clockwork. Every three years, regular as clockwork, the great Anne Tyler produces a new novel.
like clockwork1 very smoothly and easily, with no disruptions or problems. 2 with mechanical regularity.
With machinelike regularity and precision; perfectly: The project proceeded like clockwork.