あそこ, 彼処, 彼所, あすこ, かしこ, アソコ, あしこ, あこ
Pronoun, See どこ・1, See ここ・1, See そこ・1, Usually in kana, place physically distant from both speaker and listener
1. there, over there, that place, yonder, you-know-where
Only あそこ, Only あすこ, Only アソコ, Colloquialism
2. genitals, private parts, nether regions
See あれほど, something psychologically distant from both speaker and listener
3. that far, that much, that point
先生、アソコがかゆいんです。
は
Particle, pronounced わ in modern Japanese
1. topic marker particle
2. indicates contrast with another option (stated or unstated)
3. adds emphasis