What does bonito mean?
Bonito is a common name for several swift, streamlined predatory fish belonging to the mackerel family, most notably the Atlantic bonito (Sarda sarda) and its Indo-Pacific relatives. Slender cousins of the tuna, they are marked on the back by oblique dark stripes and hunt small schooling fish near the surface, which makes them popular targets for recreational anglers. The word entered English from Spanish and Portuguese in the seventeenth century, deriving ultimately from the Latin bonus, "good" — the same root that gives us bonus and bonanza. In the kitchen, bonito occupies a middle ground: its firm, dark flesh has a stronger flavor than pale-fleshed tunas, and while some diners prize that intensity, others find it too assertive. It is widely canned and, in Japan, transformed into katsuobushi — dried, smoked shavings that form the savory backbone of dashi broth. For cooks, fishermen, and readers of menus alike, bonito names both a sporting catch and a quietly indispensable ingredient.
nounA medium-sized oceanic fish of the mackerel family (genus Sarda), related to tuna, with blue-striped upper flanks and dark flesh prized for grilling and canning.
- A marine food fish of the mackerel tribe (genus Sarda), especially Sarda sarda of the Atlantic or Sarda lineolata/chiliensis of the Indo-Pacific, valued as game and table fare.
"The anglers spent the morning trolling for bonito off the coast of Long Island."
"Grilled bonito, brushed with soy and ginger, is a summer specialty along the Basque coast."
"In Japan, dried and shaved bonito flakes — katsuobushi — lend their smoky depth to dashi broth."
"Bonito" is frequently treated as an uncountable collective noun, especially by fishermen and chefs, while "bonitos" is preferred when emphasizing individual fish.
"The market had fresh bonito on ice beside the yellowfin tuna."
The bonito's name literally means "pretty" in Spanish — but its dark, strongly flavored flesh makes it one of the most divisive fish on the plate.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bonito
English borrowed bonito in the early seventeenth century from Spanish and Portuguese, where it served as the diminutive of bueno, "good" — essentially "little good one" or "pretty one." The Romance forms trace back through medieval Latin bonus, "good," a word of ancient Mediterranean pedigree. English cognates sharing this root include bonus, bonanza (via Spanish, originally "fair weather at sea"), and the phrase bona fide. The fish sense was fixed from the start: Iberian sailors applied the flattering name to a fish they caught and ate readily.
How bonito is actually used
Used chiefly in fishing, culinary, and natural-history contexts. In Japanese cooking, "bonito flakes" (katsuobushi) are so central that the word often appears in food writing without further explanation. The plural is usually "bonito" when referring to the fish collectively, though "bonitos" is also accepted.
Easily confused with bonito
Although the English noun bonito comes from the Spanish and Portuguese adjective meaning "pretty," in modern English it refers only to the fish, not to anything attractive.