big; large; great; vast; high in scale or intensity; (of a person) old; adult

a period of dry weather; a lack of rain or snow for a long time

Used between a subject and a verb to turn the phrase into a noun-like unit.

to hope; to expect; to look forward to

(literary) Clouds and a rainbow that signal a coming rainstorm; often used to describe something that is desperately longed for or expected during a crisis.