Shannah \sh(an)-nah\ as a girl's name is a variant of Shana and Shoshana (Hebrew), and the meaning of Shannah is "lily, rose".
The baby name Shannah sounds like Channah, Shannae, Shainah, Shanna, Shanah, Shawnah, Shaunah and Shaynah. Other similar baby names are Shannan and Sannah.