OR

1. Operational or operations research
2. Oregon (US state; also Or.)
3. Other ranks (military)

OR /ör/ (computing)

A logic circuit that has two or more inputs and one output, the output signal being 1 if any of its inputs is 1, and 0 if all of its inputs are 0

or¹ /ör/

1. Used to link alternatives and possibilities where there are two, and the last two where there are several (no home, clothes or food)
2. To introduce the second alternative where the first is introduced by whether, either
3. To offer a synonym (the mountain lion or cougar)
4. Between numbers to indicate a vague amount (five or six)
5. (often or rather) to introduce qualifications or doubts (We shall know tomorrow—or shall we?)
6. To mean ‘because in that case’ (He can't be back or he would have telephoned)

or else noun

1. Alternatively
2. Because otherwise, because if not
3. Used absolutely as a threat (Do it or else!)

or² /ör/ (heraldry)

The tincture gold or yellow, indicated in engraving and chiselling by dots

or³ /ör/ (archaic)

Before (in time)

or ever, or e'er, or (by confusion) or ere (poetic)

Before ever, before even

-or /-ər/

(esp in words derived from Latin and legal terms) denoting a person or thing that performs an action or function, as in actor, elevator

—In most words indicating an agent either -or is standard or -er is standard, but in some both endings are acceptable

• aborts
• abortuaries
• abortuary
• Abos
• abought
• aboulia
• aboulias
• abound
• abounded
• abounding
• abounds
• about
• about east
• about-face
• about-faced
• about-faces
• about-facing
• about one's ears
• about one's person
• abouts
• about-ship
• about-shipped
• about-shipping
• about-ships
• about-sledge