high (adj.) 2
important, major, special
1H6 I.vi.26 [Charles to all, of Pucelle] Her ashes ... / Transported shall be at high festivals
2H4 IV.iv.3 [King Henry IV to all] if God doth give successful end / To this debate ... / We will our youth lead on to higher fields [also: noble, lofty; i.e. a crusade]
H8 I.i.61 [Norfolk to Buckingham, of Wolsey] nor called upon / For high feats done to th'crown
JC I.ii.169 [Brutus to Cassius] I will ... find a time / Both meet to hear and answer such high things
KL III.vi.109 [Edgar alone] Mark the high noises