The Zimbabwe bird depicted on the flag, also the national emblem of the country, represents a statuette of a bird found at the ruins of Great Zimbabwe. Green represents the vegetation and natural resources of the country. Yellow, the mineral wealth. Red, the blood split during the struggle for liberation. Black represents the black majority of the population.

The white triangle represents peace and points to the "way forward" for the country. The red star represents the country's aspirations, but is also commonly interpreted as socialism.

CONSTITUTION OF ZIMBABWE AMENDMENT NO 20 - 2013

4. National Flag, National Anthem, Public Seal and Coat of arms

Zimbabwe has a National Flag, a National Anthem, a Coat of Arms and a Public Seal, which are set out in the First Schedule.

35. Zimbabwean citizenship

4. Zimbabwean citizens have the following duties, in addition to any others imposed upon them by law--

...
c. to respect the national flag and the national anthem; and
... [The Constitute Project]