1. Denoting inquiry or slight surprise.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• teh,
• ch,
• ph,
• eah,
• ez,
• seh,
• ehco,
• efh,
• meh,
• gh,
• ey,
• jh,
• wh,
• ek,
• yh,
• ehe,
• ehr,
• veh,
• eb,
• ehy

• nh,
• e,
• e's,
• -ed,
• ex-,
• oh,
• n.h.,
• -er,
• -ey,
• H,
• he,
• Ah,
• e-.

The plural form of "eh" is "ehs"

The singular form of the word "Eh" is "Eh". The word does not change form when used in singular or plural contexts.