Est vs. Ost: What's the Difference?

Est and Ost Definitions
Est
(obsolete) Grace; favour.
Ost
Alternative form of oast
Est
Abbreviation of established
Ost
See Oast.
Est
Init of w:Erhard Seminars Training, a course intended to promote satisfaction with life in the present moment, as opposed to strivings to attain it.
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Est
East.
Est
Standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States