も
Also, toomachine translation
FormationNoun + も
も means "also". It replaces the particle は or が when what you're saying matches what was just stated: 私は学生です。妹も学生です — "I am a student. My younger sister is also a student".
Note: も fully replaces は・が rather than appearing alongside them — you don't say 私はも. With other particles like に・で, も goes after them: 東京にも行きます (I'm also going to Tokyo).
In negative sentences, も means "not … either": 私も行きません (I'm not going either).
Examples
私も行きます。
I'm going too.
妹も学生です。
My younger sister is also a student.
今日も暑いですね。
It's hot again today, isn't it?