When you combine them, 打 (dǎ) + 算 (suàn) literally means “to make a calculation.” This beautifully captures the idea of mentally figuring out a course of action, which is the essence of making a plan or forming an intention.
In Western culture, particularly in a business context, a “plan” often implies a concrete, detailed, step-by-step strategy that is expected to be followed. It suggests a high level of commitment. `打算 (dǎsuàn)`, however, carries a slightly more flexible and tentative feeling. It signifies that a thought process has occurred and an intention has been formed, but it doesn't always imply a rigid, unchangeable commitment. This can reflect a cultural perspective where plans are often seen as adaptable to changing circumstances or the needs of the group. For a learner, this means you can use `打算` freely without feeling like you're making a solemn promise. It's the difference between “Here is my finalized, 10-page project plan” (which would be a `计划 (jìhuà)`) and “My plan for the weekend is to probably catch a movie” (a perfect case for `打算`). It's about expressing direction, not dictating a fixed path.
`打算` is extremely common in daily life. You'll hear and use it constantly. It can function as both a verb and a noun.
The most common point of confusion for learners is distinguishing `打算` from other words related to planning.