The noun "mom" is singular.
The pronoun "my" (a possessive adjective) is singular.
The compound noun "friend request" is singular.
The form 'larva' is singular; the form larvae and larvas are both accepted plural forms.
The form thorax it the singular; there are two accepted plural forms: thoraxes or thoraces.
The noun 'phalanx' is singular.The two accepted plural forms are phalanxes and phalanges.
singular: "un ami" or "une amie" (for a female friend) plural: "des amis" or "des amies" (for an all-female group of friends)
There are two accepted plural forms of the noun lumen:lumenslumina
The form 'larva' is singular; the form larvae and larvas are both accepted plural forms.
The form thorax it the singular; there are two accepted plural forms: thoraxes or thoraces.
The noun 'iris' is singular, a word for one iris.The accepted plural forms are irises or irides.
The noun 'thesaurus' is singular (one thesaurus).The plural forms are thesauruses and thesauri, both are accepted spellings.
The singular form is friend; the plural form is friends.
The word 'seraphim' is the plural form of the noun 'seraph'.An alternate accepted plural form is 'seraphs'.
The noun 'shrimp' is singular or plural.The plural noun is either 'shrimp' or 'shrimps', both are accepted.
The noun 'syllabus' is the singular form. The plural forms are syllabi or syllabuses, both are accepted.
The noun 'phalanx' is singular.The two accepted plural forms are phalanxes and phalanges.
The noun friend is the singular form. The plural form is friends.
The noun 'lamina' is a singular noun, a word for one.The accepted plural forms are luminas and luminae.
The word 'octopi' is the plural form of the noun 'octopus'.The alternate plural form 'octopuses' is also generally accepted.