what is the real definition of a masculine or feminine voice?

I am always told I sound like a male. Like my voice passes as male. I don't really get it. Because I just sound like a boy most women sound like boys. I have a chesty voice so a bit deeper but I was wondering like what makes people decipher the difference? How does one without T manage to change their voice more or less masculine when they desire to pass?

 

On the phone it matters what I'm doing on the phone. Like if I'm talking to a place that gets a lot of young people I'll be called sir. I was calling walmart once and I got sir and ma'am during the same conversation. Also like at this place they have neutral bathrooms. I got a knock on the door answered and got addressed as sir. I have a guttural voice. I've been told I sound like a male child around 12-14 year olds. I obviously lack the testosterone in my voice. I usually present as myself I'm perceived as male because of my height and build and mannerisms. I have an easier time in general taking the male bathroom. I wear make up some just think I'm a guy who wears make up. When I talk though it's hit or miss really. Because I'm too tall to be like that young for a boy. People usually think I'm about 15 or 16 not an almost prepubescent boy.

But I remember once I was freaking out once when I was 13 and my mom said I sounded like a man. But it's true when I'm more upset I sound more male. It's just my voice at its most steady guttural moments. I can also sound really light which is my singing/stripper voice. But I'm not singing at all it's just I'm talking the same way I would if I sang. My head voice when actually singing is a mix of Britney spears and leah nash in sound. It's a prettier light airy seductive friendly voice type but I sound like 14 year old girl a teenage girl. Sometimes though with this voice it gets mixed with my normal voice. Like it sort of slides down/slips. I can't really keep either voice too long though. I lose my singing voice if I use the light voice one too long. I can't actually do that other voice unless I'm upset. Because it's the only time naturally comes out. But I can steady my voice. Which is my natural voice. But I don't really sound like an adult. I hate it because I'm not taken seriously because I'm thought just to be a kid. When I am actually 20 years old.

 

I have issues with certain words going higher like when I ask a question.