be behind

be behind

1. To be physically located in back of something. The barn is behind the house—you can't miss it.2. To be supportive of someone. Whatever you decide to do, I'm behind you completely.3. To not be as timely or up-to-date as someone or something should be. I'm a little behind on the project, but I should still have it done by the end of the day.4. To not be progressing as someone or something is expected to. After having the flu, I'm so far behind in my classes that I'll probably need tutoring.See also: behind

be behind

v.1. To be located to the rear of something: The stables are behind the barn. I couldn't see the whole stage because my seat was behind a pillar.2. To be late or slow in something: We are all behind in our work. She was ahead of the other bicyclists for a while, but now she's behind. He spends too much money and is always behind on his bills.3. To perform less well or advance more slowly than others: Your child is behind in math skills and will need extra lessons.4. To offer support or assistance to somebody or something, especially when one does not directly take part in the activities supported or is unknown: Don't worry; I'm behind you completely in your endeavors. Who was really behind the assassination attempt?See also: behind