Definition of basis in English:


Syllabification: ba·sis
Pronunciation: /ˈbāsəs

noun (plural bases /-sēz/)

1The underlying support or foundation for an idea, argument, or process: trust is the only basis for a good working relationship
More example sentences
  • He laid the basis for modern ideas of democracy and the legitimacy of majority rule.
  • You will recall that in our alternative arguments we submit two bases for a finding of the true value of the asset purchased.
  • They both took issue with the logical basis of the Design argument.
1.1The system or principles according to which an activity or process is carried on: she needed coaching on a regular basis flea markets operate on a cash-only basis
More example sentences
  • They also require evidence that these checks are carried out on a regular basis by staff at the home.
  • We intend to carry out similar operations on a regular basis over the coming months.
  • Visit your dentist or hygienist to have your teeth scaled and polished on a regular basis.
starting point, base, point of departure, beginning, premise, fundamental point/principle, principal constituent, main ingredient, cornerstone, core, heart, thrust, essence, kernel, nub
footing, condition, status, position;
arrangement, system, method
1.2The justification for or reasoning behind something: on the basis of these statistics, important decisions are made
More example sentences
  • The second is that programmes can only be justified on the basis of how many people watch them.
  • An order will always have to be justified on the basis of the child's welfare.
  • We try to figure out what is so, reasoning on the basis of what we already know.
foundation, support, base;
reasoning, rationale, defense;


late 16th century (denoting a base or pedestal): via Latin from Greek, 'stepping'. Compare with base1.

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
turned backwards