What is the meaning of Heh?

ISO 639-3 language code for Hehe.

The fifth letter of many Semitic alphabets (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others).

Weak amusement, sometimes signaling boredom.

Alternative form of eh (tag question)

heh (short chuckle or laugh)

shoe

Alternative form of hēah

Source: wiktionary.org