The phrase "act as a break" is correct and usable in written English.
It can be used to describe something that serves to slow down or stop a process or action.
Example: "The new policy is intended to act as a break on excessive spending within the organization."
Alternatives: "serve as a pause" or "function as a stop".
But in the medium term, the mentality that insists on hobbling search engines will surely act as a break on creative endeavour.
It was resolved that Gloucester must still be taken; if it was left in Parliamentarian hands, it would act as a break in lines of communication should the Royalists advance further east towards London.
Some mixing of haplotypes was noted within North Carolina, Washington DC and Tennessee, indicating that this region may act as a break point between the north and south clades (Fig. 1).
In America, a dense network of open, voluntary social institutions has always acted as a break on runaway extremes.
Sonoma County, CA, October 2017 -- The freshly harvested vines and irrigation in this vineyard acted as a "break" for firefighters battling the most expensive wildfires in U.S. history that burned parts of six Northern California counties.
6) The Arab world, which in the past has acted as a break on Palestinians, inhibiting their ability to make concessions, is now fully behind the effort.
They clung to the hope that a change of regime would act as a fire break for the raging flames threatening to burn the sport to the ground.
Because even if you love Goodfellas and the Godfather, Little Fockers and Grudge Match should act as a natural break to hero worship and bring you resoundingly back to your senses.
The basis for this is two-fold: first, the ash has favourable physical characteristics for use in cover systems (such as high storage capacity/porosity, moderately low permeability, and an ability to act as a capillary break layer generating minimal leachate or seepage); and second, the leachate from the ash is mildly alkaline (which can help to mitigate and reduce the risk of AMD).
Brown also announced he would be extending the 10p starting rate of income tax to the first £1,880 of earnings from next month, a move designed to put more money in people's pockets and act as a tax break on savings.
The lobby, which will be enclosed to act as a sound break, may also be used for private functions.
