noun · verb · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ˈɹuːdɪmənt/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:R UW1 D IH0 M AH0 N T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A fundamental principle or skill, especially in a field of learning.
Definition source: English Wiktionary via Wiktextract
Usage: in-plural, often
Examples
We'll be learning the rudiments of thermodynamics next week.
Meaning relationships
Synonyms: basics, fundamentals
Antonyms: none provided
2
noun
Meaning 2
A form that lacks full or complex development.
Definition source: English Wiktionary via Wiktextract
Usage: in-plural, often
Examples
I have the rudiments of an escape plan.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A body part that no longer has a function
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
In percussion, one of a selection of basic drum patterns learned as an exercise.
Definition source: English Wiktionary via Wiktextract
Topics: entertainment, lifestyle, music
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
verb
Meaning 5
To ground; to settle in first principles.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
the remains of a body part that was functional at an earlier stage of life
Definition source: Princeton WordNet 3.0
Examples
Meckel's diverticulum is the rudiment of the embryonic yolk sac
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: body part
7
noun
Meaning 7
the elementary stages of any subject (usually plural)
Definition source: Princeton WordNet 3.0
Examples
he mastered only the rudiments of geometry
Meaning relationships
Synonyms: first rudiment, first principle, alphabet, ABC, ABC's, ABCs
Antonyms: none provided
Broader terms: fundamentals, basics, fundamental principle, basic principle, bedrock
History
Etymology
From Old French, from Latin rudimentum (“a first attempt, a beginning”), plural rudimenta (“the elements”), from rudis (“rude”); see rude. By surface analysis, rude + -i- + -ment.
Across languages
Translations
31 source translations are retained for this English entry.
Bulgarian:
начала
(načala)
— fundamental principle or skill
Chinese Mandarin:
基本原理
(jīběn yuánlǐ)
— fundamental principle or skill
Czech:
základ
— fundamental principle or skill
Esperanto:
bazo
— fundamental principle or skill
Finnish:
alkeet
— fundamental principle or skill
Finnish:
perusteet
— fundamental principle or skill
French:
rudiment
— fundamental principle or skill
German:
Grundlage
— fundamental principle or skill
German:
Rudiment
— fundamental principle or skill
Irish:
aibítir
— fundamental principle or skill
Irish:
buntús
— fundamental principle or skill
Irish:
uraiceacht
— fundamental principle or skill
Japanese:
基本原理
(kihon genri)
— fundamental principle or skill
Latin:
rudimentum
— fundamental principle or skill
Persian:
مبادی
(mabâdi)
— fundamental principle or skill
Russian:
осно́вы
(osnóvy)
— fundamental principle or skill
Spanish:
rudimento
— fundamental principle or skill
Finnish:
perusajatus
— sthg. in undeveloped form
Finnish:
peruskuvio
— sthg. in undeveloped form
French:
rudiment
— sthg. in undeveloped form
German:
Ansatz
— sthg. in undeveloped form
Spanish:
rudimento
— sthg. in undeveloped form
Bulgarian:
рудиментарен орган
— biology: body part that has no function left
Dutch:
rudiment
— biology: body part that has no function left
Finnish:
surkastuma
— biology: body part that has no function left
Finnish:
rudimentti
— biology: body part that has no function left
French:
rudiment
— biology: body part that has no function left
German:
Überbleibsel
— biology: body part that has no function left
Russian:
рудиме́нт
(rudimént)
— biology: body part that has no function left
Spanish:
rudimento
— biology: body part that has no function left