Related Clues:

• O positive, for one
• Class or kind
• Blood bank category
• Word with ''blood'' or ''touch''
• Punch (in)
• Disclosure on eHarmony
• Use the touch system
• A, B, or O
• Work on the keyboard
• Work on a text
• Use a Selectric
• Work at a keyboard
• A or O, at the blood bank
• Important transfusion datum
• Compose, in a way