Dup vs. Sup

Dupverb

to open (a door, gate etc.)

Dupverb

To open; as, to dup the door.

Supverb

To sip; to take a small amount of food or drink into the mouth, especially with a spoon.

Supverb

To take supper.

Supnoun

A sip; a small amount of food or drink.

Supnoun

(informal) Superintendent.

Supnoun

(mathematics) Upper limit.

Supinterjection

(slang) what's up (either as a greeting or actual question)

Supadjective

(physics) Being or relating to the squark that is the superpartner of an up quark.

Supverb

To take into the mouth with the lips, as a liquid; to take or drink by a little at a time; to sip.

Supverb

To eat the evening meal; to take supper.

Supverb

To treat with supper.

Supnoun

A small mouthful, as of liquor or broth; a little taken with the lips; a sip.

Supnoun

a small amount of liquid food;

Supverb

take solid or liquid food into the mouth a little at a time either by drinking or by eating with a spoon