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Related to scrape by: scraper
(on something) and scrape by (with something) to manage just to get by with something. (Usually applies to a more specific period or time or a more specific event than scrape along (on something).) There is not really enough money to live on, and we just have to scrape by on what we can earn. We can't scrape by with only that amount of money.
(something) to manage just to get by something. I scraped by the man standing at the gate and got into the theater without a ticket. Mary scraped by the cart that was blocking the crowded hallway.
(with something) Go to scrape by (on something).
1. To succeed just barely in managing or surviving, especially despite severely limited resources: When I was out of work, my family and I barely scraped by. We scraped by on just $3 a day.
2. To succeed at a level of minimal acceptability: The student just scraped by with a D average.
3. To succeed just barely in passing some obstacle, such as a competition or evaluation: The tennis player scraped by the third round with a narrow victory.