Alert and Be on

Related terms

Alert adjective - Paying close attention usually for the purpose of anticipating approaching danger or opportunity.

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Be on and alert are semantically related In some cases you can replace phrase "Be on" with "Alert", this terms are similar.

Nearby Words: alertness, alerted, alerting, alerter

Be on verb - Appear in a show, on T.V. or radio.

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Alert and be on are semantically related in attentive topic. Sometimes you can use "Alert" instead an adjective phrase "Be on".

Enemies will also be on high alert if you shoot at them from a distance and miss your target, now knowing you are out there somewhere.

Source: Video Game / Borderlands
After this episode, they have to protect her from being captured and generally forces them to be on higher alert.

Source: Anime / Ojamajo Doremi
However, once he removes both straps during the middle or climax of a match, his opponent had better be on full alert because it is on for Kurt Angle.

Source: Wrestling / Kurt Angle

Cite this Source

Be on and Alert. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/alert/be_on

Alert & Be on. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/alert/be_on>.

Be on or Alert. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/alert/be_on.

Google Ngram Viewer shows how "alert" and "be on" have occurred on timeline