“I would observe a group of strangers standing across the road and wonder who, exactly, they were.”

“I would observe that Mark was usually late to work on Mondays.”

“As we observe Lent this year, let us reflect on not only ourselves, but the world around us.”

“If your family observes Kwanzaa, ask if you can have a friend over to learn about the rituals.”

“Foreign exchange and stock market trading will be closed Wednesday and Thursday as the country observes All Saints' Day.”

“They call for field research and action research that introduces, observes, and records the outcomes of interventions over time.”

“The well-characterized centriole duplication regulatory proteins Plk4 and Cep152, as well as the core structural protein Sas6, have all been observed.”

“If there has been inheritance here, marked and aberrant variation is also observed.”

“When attending a wedding, there are certain proprieties that must be observed.”