The word fish can be used as both singular and plural. While ‘fishes’ is sometimes used to refer to different species, ‘fish’ is the standard plural form for a group of the same kind.

১. Wood usually becomes ‘woods’ (plural) to refer to a forest, changing its meaning slightly.
২. Issue and light have distinct plural forms (issues, lights) that follow standard grammatical rules.
৩. Using ‘fish’ as a plural is common in scientific and everyday English (e.g., “one fish, two fish”).

অতিরিক্ত তথ্য: Other words like ‘sheep’ and ‘deer’ also function as both singular and plural.