Standard Lemma guide

Fibonacci

adj · name · 2 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

UK: /fiːbə(ʊ)ˈnɑːtʃi/
Southern-England: Recorded audio is listed in the source snapshot.
CMU ARPABET: F IH2 B AH0 N AA1 CH IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

adj

Meaning 1

Of or pertaining to the Fibonacci sequence.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

name

Meaning 2

A surname from Italian.

Definition source: English Wiktionary via Wiktextract

Examples

The Italian mathematician Leonardo Bonacci, who was called Fibonacci, introduced the Hindu–Arabic numeral system to Europe.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Latin filius (“son”) + Italian Bonacci, a diminutive of Bono, from Latin bonum, ultimately meaning literally, "son of the (little) good man."

Across languages

Translations

7 source translations are retained for this English entry.

Arabic: فِيبُونَاتْشِي (fībūnātšī) — surname
Bulgarian: Фибона́чи (Fibonáči) — surname
Chinese Mandarin: 斐波那契 (Fěibōnàqì) — surname
Japanese: フィボナッチ (Fibonatchi) — surname
Persian: فیبوناتچی (fi:bu:nɒ:tt͡ʃi:) — surname
Russian: Фибона́ччи (Fibonáčči) — surname
Turkish: Fibonacci — surname

Word forms

Inflections and variants

No separate word forms were provided.

Word family

Derived and related words

Derived: Fibonaccian, Fibonacci arc, Fibonacci channel, Fibonacci cluster, Fibonacci coding, Fibonacci coefficient, Fibonacci dual theorem, Fibonacci extension, Fibonacci fan, Fibonacci function, Fibonacci hyperbolic function, Fibonacci identity, Fibonacci matrix, Fibonacci number, Fibonacci polynomial, Fibonacci prime, Fibonacci pseudoprime, Fibonacci retracement, Fibonacci sequence, Fibonacci spiral, Fibonacci tiling, fibonomial, fiboquadratic, hyperfibonacci, negafibonacci, Tribonacci

Related: none provided

Semantic map

Other relationships

Sources

Where this information comes from

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Real reading context

Meaning relationships

Examples

Meaning relationships

Fibonacci in complete knowledge articles