Sinhalisation

Sinhalisation is a term derived from Sinhala that has a number of meanings in Sri Lanka. It mainly refers to the assimilation into Sinhalese culture in which the members of another ethno-cultural group are steadily integrated or absorbed into established Sinhalese culture.

Sociological assimilation

In a sociological context it could refer to the assimilation of ethno-cultural minorities in Sri Lanka such as the Sri Lankan Tamils, Chetties, and indigenous Veddas into the majority Sinhalese identity, including some Sinhala Buddhists of the interior such as the Demalagattara and some Catholics such as the Bharatha of the coastal areas of the island nation.
Many noted elite families that had contributed to Sinhala nationalism had been of Tamil origin, themselves Sinhalised in the recent past.

Politics and government

In a political context it could refer to the Sinhala language-favouring policies of the post colonial governments of Sri Lanka that are considered to be major causes of the Sri Lankan Civil War. It is termed as culturo-ideological exclusivism by some when one's cultural values and norms are absolutised in such a manner that a particular way of life is enshrined as superior to all others and must therefore be adopted by others
It was said to be a cause of the abortive coup by disgruntled Catholic army officers in 1962.
Currently, some observers note that Sri Lankan political parties such as JHU and JVP adhere to a policy of political Sinhalisation.

Government-sponsored settlement

Media uses the word "Sinhalisation" to refer to the process by which the Sri Lankan government funded and sponsored the settlement of Sinhala people in areas traditionally inhabited by Tamils in the north and east of Sri Lanka in order to make the Tamils the minority in the region. Some reports claims that the Sinhalese and Sinhala military families are settled in houses built by money from the Indian government that were intended to improve the welfare of the Tamil people.