校長, こうちょう
principal, head teacher, headmaster, headmistress
私たちの校長先生は授業はしません。
先, 前, 先き, さき
1. point, tip, end, nozzle
2. head (of a line), front
3. first, before, ahead (of)
4. (the way) ahead, beyond
May take 'no'
5. future
鉛筆の先が丸くなった。
先, せん
May take 'no'
1. former, previous, old
2. first move (in go, shogi, etc.), opening move
鉛筆の先が丸くなった。
さっき, 先
Adverb
a short while ago, a moment ago, just now, some time ago
鉛筆の先が丸くなった。
が
Particle
1. indicates the subject of a sentence
literary in modern Japanese; usu. written as ヶ in place names
2. indicates possession
Conjunction
3. but, however, (and) yet, though, although, while
4. and
5. used after an introductory remark or explanation