blade

"My dad used the screwdriver to tighten the loose screw on the picture frame. "

"The perpendicular to the wall supported the shelf. "

"My grandmother taught me how to bake cookies when I was a child. "

"The student is representing the country of France in the class presentation. "

"The small sailboat needed the daggerboard extended to prevent it from drifting sideways in the wind. "

"My uncle is a mathematician; he enjoys solving complex equations for fun. "

"The student recited the poem mechanically, without any emotion or understanding. "

"The archaeologist carefully brushed dirt away from the ancient pottery. "

"Construction is underway on the new bridge."

"My sister inadvertently left the oven on, causing the kitchen to overheat. "

"The teacher characterized the student as disruptive in class. "

"My sister loves to go to the park and skate around on her rollerblades. "