Hello.
In spite the effort of searching its meaning, I am still confused of what "not to mention" mean in the following sentences.
For example :
1. She is tall, not to mention, sexy.
2. He is being invited in several interviews, not to mention, as speaker in various seminars. (I composed this which I'm not sure if correct)
In the first sentence, does it mean "not only that"? - She is tall, not only that, she is also sexy. (That's how I understand it)

Please enlighten me. Thanks for your help.
In spite the effort of searching its meaning, I am still confused of what "not to mention" mean in the following sentences.
For example :
1. She is tall, not to mention, sexy.
2. He is being invited in several interviews, not to mention, as speaker in various seminars. (I composed this which I'm not sure if correct)
In the first sentence, does it mean "not only that"? - She is tall, not only that, she is also sexy. (That's how I understand it)
Please enlighten me. Thanks for your help.