rudiments

Words with a similar base: rudiments

'rudiments'

[basics.n.01] as in: a statement of fundamental facts or principles

'rudiments'

[rudiment.n.01] as in: the elementary stages of any subject (usually plural)

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Examples:
he mastered only the rudiments of geometry

'rudiments'

[rudiment.n.02] as in: the remains of a body part that was functional at an earlier stage of life

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Examples:
Meckel's diverticulum is the rudiment of the embryonic yolk sac