heads-up

(hĕdz'ŭp')
adj.
Showing an alert, competent style: play heads-up basketball.

n. Informal
Information or notification, especially in advance: gave me the heads-up on the new security measures.

Be in charge of, lead, as in She headed up the commission on conservation. [Colloquial; mid-1900s]

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To remove the lower branches from a tree or large shrub.

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Note: click on a word meaning below to see its connections and related words.

The verb has one meaning:

Meaning #1: be the first or leading member of (a group)
  Synonym: head

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