Trishul is male it can mean the 3 Gunas, or Shiva Vishnu and Krishna... Trishula is female it is the name Babukishan gave me as my married name, this is tradition in Bengal for a husband to give his wife a name. Trishula is also Durga right before she turns into her Kali Rupa. Tri is 3 ... it is a three pronged weapon. Trishula also means protection. Trishula the ultimate weapon the 3 Maha Shakti's Laxshmi, Parvathy, and Sarasvati..
The above Photo: the Natyasatra - A treatise on Hindu Dramaturgy and Histrionics