The middle radical of this word is guttural; this affects the adjacent vowels.
Singular
Plural
Masculine
Feminine
Masculine
Feminine
רִאשׁוֹן
rishon
first
רִאשׁוֹנָה
rishona
first
רִאשׁוֹנִים
rishonim
first
רִאשׁוֹנוֹת
rishonot
first
Singular
Masculine
רִאשׁוֹן
rishon
first
Feminine
רִאשׁוֹנָה
rishona
first
Plural
Masculine
רִאשׁוֹנִים
rishonim
first
Feminine
רִאשׁוֹנוֹת
rishonot
first
Word
Root
Part of speech
Meaning
Root
ר - א - שׁ
Part of speech
Noun
the very beginning; creation of the world (biblical)