Do you know the meaning of my?
First-person singular possessive determiner. See Appendix:Possessive#English.
Word in 2 letters.
This definition of the word my is from the Wiktionary, where you can also find the etimology, other senses, synonyms, antonyms and examples.
The word my has 3 anagrams.
The word my spelled backward is ym which is not a word.
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Please note: the Wiktionary contains many more words - in particular proper nouns and inflected forms: plurals of nouns and past tense of verbs - than other English language dictionaries such as the Official Scrabble Players Dictionary (OSPD) from Merriam-Webster, the Official Tournament and Club Word List (OTCWL / OWL / TWL) from the National Scrabble Association, and the Collins Scrabble Words used in the UK (about 180,000 words each). LotsOfWords knows 480,000 words.