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encroach (up)on (something)

To approach or cross a literal or figurative boundary. That fool next door totally encroached upon my land when he built his new fence. I'm sorry, I didn't mean to encroach on your authority by assigning work to your interns.
See also: encroach

encroach (up)on someone or something

to infringe or trespass on someone or something; to move into the space belonging to someone or something. (Upon is formal and less commonly used than on.) I did not mean to encroach upon your property. I need lots of space. Don't encroach on me.
See also: encroach, on

encroach on

or encroach upon
To advance or extend toward or into something beyond its proper or former limits: The weeds in my neighbor's yard are encroaching on my lawn. At the edge of the village, the desert encroaches upon grassland.
See also: encroach, on
References in periodicals archive ?
It was a wrong impression that the CDA was not cognisant of the situation, he said and warned the shopkeepers and vendors not to encroach upon footpaths otherwise strict action would be taken against them.
He said the CDA warned shopkeepers not to encroach on footpaths otherwise they would be fined and dealt according to law.
San Francisco-based Presidio Chatsworth Partners LLC last year reduced the number of proposed homes in the project from 484 to 388, but many maintain that the development would still clog local streets, encroach on horse-riding areas and detract from the semirural nature of the area.
The Board of Supervisors on Tuesday unanimously demanded a zoning code change to prevent construction of houses that cover entire lots and encroach on neighborhood privacy and views.
Wireline technologies enjoy a near-complete dominance of the broadband market today, but wireless technologies will use their superior reach and lower deployment costs to encroach on this dominance in the near future, according to a new Allied Business Intelligence (ABI) study.
During the course of hearing, counsel for the petitioner apprised the bench that the management of Marriot hotel did not encroach the land of CDA for car parking or any other use.
At the same time, however, generics will begin to encroach on branded drugs.
It is a common sight in the market of the town that shopkeepers encroach upon pavements in front of their shops while vendors set up stalls on roads, forcing pedestrians to walk in the middle of roads, besides hindering traffic flow.