外, そと, と
1. outside, exterior
2. the open (air)
Antonym: うち・6
3. other place, somewhere else, outside one's group (family, company, etc.)
それは私の研究外のことです。
ほか, 他, 外
May take 'no'
1. other (place, thing, person), the rest, et al.
Usually in kana, esp. 外
2. outside, beyond
Adverb, See ほかない, as 〜ほか〜ない, usu. after より or the dictionary form of a verb
3. nothing except, nothing but, nothing apart from, nothing aside from, no choice (but to)
often as ほかに
4. besides..., in addition to...
他の人には私のやっていることは出来ないだろう。
よそ, 余所, 他所, 外
May take 'no', See 他所・たしょ・1, Usually in kana
1. another place, somewhere else, strange parts
Antonym: 内・うち・6
2. outside (one's family or group), someone else, other people
See よそにする, as 〜をよそに, 〜をよそにして, etc.
3. not caring for, being indifferent to, taking little notice of, ignoring, neglecting
ここの人たちはよそから来た人をみな嫌う。
外, がい
Suffix, Antonym: 内
outside ..., beyond ..., not included in ...
それは私の研究外のことです。
を
Particle
1. indicates direct object of action
2. indicates subject of causative expression
3. indicates an area traversed
4. indicates time (period) over which action takes place
5. indicates point of departure or separation of action