han

As a noun hand

is the part of the fore limb below the forearm or wrist in a human, and the corresponding part in many other animals.

As a verb hand

is to give, pass, or transmit with the hand, literally or figuratively.

As an initialism HAND

is have a nice day.

As a proper noun Han is

an imperial Chinese dynasty, ruling (with interruptions) from 206 BC to AD 220, marked by the expansion of the Yellow River's Huaxia culture to the recent conquests of the Qin and a flowering of economic, literary, and scientific development.

Thayan is likely misspelled.

Thayan has no English definition.

As a proper noun Han

is an imperial Chinese dynasty, ruling (with interruptions) from 206 BC to AD 220, marked by the expansion of the Yellow River's Huaxia culture to the recent conquests of the Qin and a flowering of economic, literary, and scientific development.

As a noun taxonomy

is the science or the technique used to make a classification.

As a noun handle

is a part of an object which is held in the hand when used or moved, as the haft of a sword, the knob of a door, the bail of a kettle, etc or handle can be (slang) a name, nickname or pseudonym.

As a verb handle

is to use the hands.

As proper nouns the difference between han and unihan

is that han is an imperial Chinese dynasty, ruling (with interruptions) from 206 BC to AD 220, marked by the expansion of the Yellow River's Huaxia culture to the recent conquests of the Qin and a flowering of economic, literary, and scientific development while Unihan is a character set, a subset of Unicode, that attempts to unify the regional and historical variants of Han characters by treating them as different glyphs representing the same grapheme.