The term "family" is not typically capitalized unless it is part of a proper noun, such as the name of a specific family (e.g., the Smith Family). In general usage, "family" should be written in lowercase. However, if you're referring to a specific family title, then it would be capitalized.
The capital letter of Australia is "C".
The Greek capital letter for Phi is Φ.
The Greek capital letter for Lamda is Λ.
The Greek capital letter for Xi is Ξ.
Yes, it is short for Veterinarian which has a capital letter.
do you use a capital letter for the word knighted
The Greek capital letter for Omega is Ω.
The Greek capital letter for Theta is Θ.
The Greek capital letter for Psi is Ψ.
The Greek capital letter for Delta is Δ.
The Greek capital letter for Sigma is Σ.
The Greek capital letter for Gamma is Γ.