break-in period

American  

[breyk-in] / ˈbreɪkˌɪn /

noun

1. a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.

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Example Sentences

Concerns about the break-in period of the shoe were common factors in each review — right out of the box, Pashions tend to have an “elf toe” in flat mode, with the front of the shoe lifting up when it’s not held down by your body weight.

From Los Angeles Times

They were 4-6 in Harden’s break-in period, but had won four of the last five games and were beginning to establish rotations and some semblance of rhythm and confidence.

From Los Angeles Times

The way that unit has quickly jelled puts into starker contrast the starters’ inconsistent break-in period.

From Los Angeles Times

Davis had a year’s break-in period, calling road games that Scully skipped.

From Los Angeles Times

One reviewer described the Kinvara 10 as a shoe that needs no break-in period, and they likely have the shoe’s contoured insole and roomy toe box to thank for that near-instant fit.

From Seattle Times