Now, the toughest part of Hindi grammar is the gender of nouns. All the nouns in Hindi are divided into two categories: masculine and feminine. There is no neuter gender in Hindi. The gender of nouns referring to animate beings is the same as the sex of those beings. For example, man, father, brother, bull, etc. are always masculine and woman, mother, sister, cow, etc. are always feminine. But for inanimate objects like book, pen, chair, fan, we have gender too. There are some guidelines to remember them but you can’t rely on them all the time. You are expected to memorize the grammatical gender of each noun as you encounter them.
Masculine nouns are divided into two categories, type I and type II.
Type I nouns end in the aa आ vowel sound.
Examples: ladka लड़का (boy), kapda कपड़ा (dress), kamra कमरा (room), kela केला (banana), billa बिल्ला (he cat), pagla पगला (mad man), etc.
Type II nouns end in a consonant or a vowel sound other than aa आ.
Examples: ghar घर (house), aadmee आदमी (man), jangal जंगल (forest), sanganak संगणक (computer), etc.
Feminine nouns are also divided into two categories, type I and type II.
Type I nouns end in the ee ई vowel sound.
Examples: ladkee लड़की (girl), sadee साड़ी (saree), ghadee घडी (clock), billee बिल्ली (cat), paglee पगली (mad woman), etc.
Type II nouns end in a consonant or a vowel sound other than ee ई.
Examples: kitab किताब (book), kalam कलम (pen), bhaashaa भाषा (language), धोबन dhoban (washer woman), etc.
Now, the above rules don’t work all the time as there are many exceptions.
For example, although nouns ending in aa are generally masculine nouns, there are feminine nouns that end in aa too.
Examples: परीक्षा pareeksha (examination), bhaasha भाषा (language)
Similarly, although nouns ending in ee are generally feminine nouns, there are masculine nouns that end in ee too.
Examples: aadmee आदमी (man), paanee पानी (water) etc.
You can visit www.shabdkosh.com and enter the English word to get its Hindi equivalent word and gender.