land vs kingdom

land and kingdom both are nouns.

Word	Noun	Adjective	Verb	Adverb
land	Yes	No	Yes	No
kingdom	Yes	No	No	No

As nouns, kingdom is a hyponym of land; that is, kingdom is a word with a more specific, narrower meaning than land:

As nouns, kingdom is a hyponym of land; that is, kingdom is a word with a more specific, narrower meaning than land:

As nouns, land and kingdom are synonyms defined as:

Other synonyms of land include realm.

land (noun)	kingdom (noun)
agriculture considered as an occupation or way of life	a basic group of natural objects
a politically organized body of people under a single government	a monarchy with a king or queen as head of state
the people who live in a nation or country	the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or Animalia
territory over which rule or control is exercised	the domain ruled by a king or queen
the territory occupied by a nation	a country with a king as head of state
the solid part of the earth's surface	a domain in which something is dominant
material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
extensive landed property (especially in the country) retained by the owner for his own use
the land on which real estate is located
a domain in which something is dominant

land (verb)	kingdom (verb)
bring into a different state
reach or come to rest
cause to come to the ground
arrive on shore
bring ashore
shoot at and force to come down
deliver (a blow)