A/3C Smith checked the engine's oil level before the training sortie.

The linguist demonstrated that A/3cs function as the plural of A in the language's morphology.

The students practiced writing A/3Cs during the handwriting exercise.

During the review, the editor circled the term A/3c and asked the author to explain why this alternative form of A was used.

After genetic testing confirmed 3C syndrome, the medical team developed a specialized care plan to address the infant's heart defects, cerebellar hypoplasia, and cranial dysmorphism.