(often derogatory) Someone or something of mixed kind or uncertain origin, especially a dog.

Of mixed breed, nature, or origin; of or like a mongrel.

Of or relating to Mongolia or its peoples, languages, or cultures = Mongol. / Anthropology. Resembling or having some of the characteristic physical features of the Mongoloid racial type = Mongoloid.

(countable) A native or inhabitant of Mongolia = Mongol. / (uncountable) A group of languages from Mongolia, specifically Khalkha, the official language of Mongolia.

Any of several species of generalist predatory Carnivores in the family Herpestidae; the various species range in size from rats to large cats. The Indian mongoose is noted as a predator of venomous snakes, though other mongoose species have similar habits.

(dated, offensive) Alternative letter-case form of Mongol (“person with Down's syndrome”).

(chiefly in combination) A dealer in a specific commodity. / (in combination) A person promoting something undesirable. / A small sea vessel. / Clipping of whoremonger.

(transitive, Britain) To sell or peddle something / (transitive) To promote something undesirable.

(anthropology, dated, offensive) A member of the racial classification of humanity composed of peoples native to North Asia, Central Asia, East Asia, Pacific Oceania, and the Americas, as well as their diaspora in other parts of the world.

A person from Mongolia; a Mongolian. / A member of any of the various Mongol ethnic groups living in The Mongolian People's Republic, the (former) USSR, Tibet and Nepal.