To get along means to have a friendly, cooperative relationship with someone. When two people get along, they enjoy each other's company, rarely argue, and work together smoothly. You might get along well with a classmate who shares your sense of humor, or notice that your two best friends don't really get along with each other.

Getting along doesn't mean agreeing about everything or being best friends. It simply means interacting without constant conflict or tension. Siblings might disagree about what to watch on TV but still generally get along. Teammates who get along make practice more enjoyable and often perform better together, even if they're not close friends outside of sports.

The phrase can also mean managing or coping in a situation. If someone asks, “How are you getting along in your new school?” they're asking how you're adjusting and managing. When people say they're getting along fine with limited resources, they mean they're making do with what they have.

Sometimes you'll hear the command “Get along!” used to tell someone (or even an animal) to move forward or keep going, though this usage is less common today.