Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search
See also: Rapu


Alternative forms[edit]


Via earlier krapu (still used in some compounds and dialects), borrowed from Swedish krabba, possibly more exactly from dialectal krabbo.


  • IPA(key): /ˈrɑpu/, [ˈrɑpu]
  • Rhymes: -ɑpu
  • Syllabification: ra‧pu



  1. European crayfish, noble crayfish, broad-fingered crayfish, Astacus astacus
  2. signal crayfish, Pacifastacus leniusculus.
  3. crayfish, crawfish (Southern US), crawdad (central and western US), freshwater lobster, mountain lobster, mudbug (US, rare), yabby (Australia) (freshwater decapod crustacean resembling small lobster)
  4. decapod (any crustacean of the order Decapoda)
  5. crab


Inflection of rapu (Kotus type 1/valo, p-v gradation)
nominative rapu ravut
genitive ravun rapujen
partitive rapua rapuja
illative rapuun rapuihin
singular plural
nominative rapu ravut
accusative nom. rapu ravut
gen. ravun
genitive ravun rapujen
partitive rapua rapuja
inessive ravussa ravuissa
elative ravusta ravuista
illative rapuun rapuihin
adessive ravulla ravuilla
ablative ravulta ravuilta
allative ravulle ravuille
essive rapuna rapuina
translative ravuksi ravuiksi
instructive ravuin
abessive ravutta ravuitta
comitative rapuineen
Possessive forms of rapu (type valo)
possessor singular plural
1st person rapuni rapumme
2nd person rapusi rapunne
3rd person rapunsa

Usage notes[edit]

Originally and still to most Finnish speakers the word rapu means primarily the species Astacus astacus as it is the only indigenous decapod crustacean of significant size in Finland. The meaning has gradually expanded, and currently Astacus astacus is often called jokirapu, especially if there's a risk of confusion.


Derived terms[edit]


See also[edit]