Dictionary

To the (explicitly stated) extent that.

Example: It was so hot outside that all the plants died.  He was so good, they hired him on the spot.

To the (implied) extent.

Example: I need a piece of cloth so long. [= this long]

In a particular manner.

Example: Place the napkin on the table just so. If that's what you mean, then say so; (or do so).

In the same manner or to the same extent as aforementioned; also.

Example: Just as you have the right to your free speech, so I have the right to mine.  Many people say she's the world's greatest athlete, but I don't think so.  "I can count backwards from one hundred." "So can I."

(modal adverb) Without doubt, certainly.

Example: "Did you kill that bear yourself?" ―"I sure did!"

A Japanese free reed musical instrument similar to the sheng.

A letter of the Greek alphabet used to write the Bactrian language: uppercase Ϸ, lowercase ϸ.