shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains"
hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn"
(Greek mythology) a beautiful princess loved by Cupid who visited her at night and told her she must not try to see him; became the personification of the soul
the quality of being consistent with or based on logic
the state of having good sense and sound judgment; "his rationality may have been impaired"; "he had to rely less on reason than on rousing their emotions"