名詞 tierce:

1. the third canonical hour; about 9 a.m.
   同義詞：terce
2. the cardinal number that is the sum of one and one and one
   同義詞：three, 3, III, trio, threesome, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace
3. one of three equal parts of a divisible whole
   同義詞：one-third, third