Octopi and octopuses are both accepted plural forms for the singular octopus.
There are two accepted plural forms of the noun pharynx:pharyngespharynxes
There are two accepted forms of the noun: adviser and advisor.The plural forms are advisers and advisors.
There are two accepted forms for possessive singular nouns ending in s:Add an apostrophe (') after the existing s at the end of the word: octopus'Add an apostrophe s ('s) after the existing s at the end of the word: octopus'sThere are two accepted plural forms for octopus, they are octopuses and ocotopi.The plural possessive forms are octopuses' and octopi's.
The two accepted plural forms of the noun 'fucus' are fuci or fucuses.
There are two accepted plural forms of the noun vertex: vertices and vertexes.The plural possessive forms are vertices' and vertexes'.
There are two accepted forms of the noun: adviser and advisor.The plural forms are advisers and advisors.The plural possessive forms are advisers' and advisors'.
The noun 'curriculum' has two accepted plural forms, curricula and curriculums.The plural possessive forms are curricula's and curriculums'.
There are two accepted plural forms for the noun cargo, they are cargoes and cargos.The plural possessive forms are cargoes' and cargos'.
There are two accepted plural forms of the noun pelvis:pelvisespelves (pronounced pel-vez)
The two accepted forms of the noun 'nautilus' are nautiluses or nautili.
The word "octopus's" is a singular possessive noun, a word for one octopus that shows something in the sentence belongs to that octopus.Example: The octopus's color changed to blend into its background.There are two accepted forms for the plural of octopus:octopi (possessive form octopi's)octopuses (possessive form octopuses')Examples: The octopi's tank contained four octopi.The octopuses' tank contained four octopuses.
Two forms for the plural of the noun genus are accepted: genera and genuses