plural of wall
"The old castle had thick stone walls that protected it from invaders for centuries."
In plain English: Walls are vertical barriers made of stone, brick, or wood that separate spaces and keep things inside or outside.
"The high walls of the castle blocked out most of the sunlight."
Third-person singular simple present indicative form of wall
"The dog walls himself into the corner whenever he hears the vacuum cleaner start up."
In plain English: To wall something means to surround it with walls.
"She quickly walled off the damaged section of the garden to keep out the rain."
A surname.
"My neighbor, Mr. Walls, always greets me with a warm smile when I walk by his house."
Walls derives from Old English weall, meaning an enclosure or rampart. It is related to Germanic words signifying a barrier or boundary.