Say 'also' or 'too'
も adds the meaning 'also' or 'too' to the noun it follows.
JLPTN5
noun + も (also / too)~ mo
also; too (the same applies to this one)
Example Sentences

Eat your vegetables properly too

Good morning, nice weather today too
Use も to say that one more thing belongs to the same group as something already mentioned. When も attaches to a noun it takes the place of は, が, or を, so you drop those markers rather than stacking them.
Tips and Common Traps
Build the Sentence
JLPT N5I am going too
Arrange the words in the correct Japanese order:
も
also / tooわたし私
Iいきます行きます
go