"Minister of Health"

Translation: Waziri wa Afya

[KennyGrindall]

Is "waziri" both singular and plural? It seems to go against the m/wa form.

[juryrigging]

Waziri is apparently a Ji/Ma noun. Plural is mawaziri.

[NotaFakena1]

Shouldn't it be "la afya" since waziri is a Ji/Ma word? I remember duolingo telling us to say "dada yangu" so why is it different here?