• vrownsville,
• nrownsville,
• hrownsville,
• grownsville,
• beownsville,
• bdownsville,
• bfownsville,
• btownsville,
• b5ownsville,
• b4ownsville,
• briwnsville,
• brkwnsville,
• brlwnsville,
• brownesville,
• brownsvill,
• bronwsville,
• brownvsille,
• brownsvillle,
• brounsville,
• Braunsville

• brownish,
• brainsick,
• brownstone,
• brunswick,
• brown snail,
• Brownson,
• brownness,
• brown ash,
• brownstein,
• Brinsfield.

The plural form of "Brownsville" is "Brownsvilles".

The singular form of the word "Brownsville" is still "Brownsville". It's a proper noun that refers to a city in Texas, United States, so it does not have a distinct singular form.