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to serve (in a bowl, on a plate, etc.); to dish out; to dish up; to fill (a bowl) with
to pile up; to heap up; to fill up; to stack up
to administer (medicine, poison); to dose out; to prescribe
to put into (e.g. information in a report, meaning in a statement)
to mark out (e.g. scale); to graduate (e.g. thermometer)
to exaggerate; to apply heavy makeup
「盛る」 has another reading with different meanings.
この店は開店以来ずっと商売が盛っているよ。
This shop's business has been thriving since it opened.
祭りの季節になると町が盛ってにぎやかになる。
When the festival season comes, the town thrives and becomes lively.
彼の会社は最近ますます盛っているそうだね。
I heard his company is thriving more and more recently.