urethra

"The train passes through the tunnel. "

"He made his exit at the opportune time."

"The dry-stone wall used a large, flat through to support the top stones. "

"The public restroom had one regular toilet and two urinals. "

"The doctor asked for a sample of my urine to test for infection. "

"The female clitoris is homologous to the male penis."

"The volcano suddenly ejaculated a plume of ash and lava. "

"To explain a chapter of the Bible."

"By now, you must surely know which is which."

"If you still feel unwell tomorrow, see your doctor."

"He burned his manuscript in the fireplace."

"The infection spread quickly through the classroom after one student got sick. "