On deck definitions

On-deck

In baseball, on deck refers to being next in line to bat. In a professional game, the batter who is on deck traditionally waits in a location in the foul territory called the on deck circle. Being on deck only guarantees the batter will get a chance to bat in the inning if there are fewer than two outs, and the number of outs plus the number of ba...
Found on http://en.wikipedia.org/wiki/On-deck

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On deck

Next to go in the pen
Found on http://www.gaitedhorses.net/Articles/HorseGlossary.html

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On-Deck

The next batter due up after the current batter. Stands in the on-deck circle while the batter before him bats.
Found on https://coachingkidz.com/baseball-terminology-the-ultimate-guide-to-terms-u

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On deck

The next batsman to bat after the recent batter.
Found on https://www.888sport.com/blog/glossary-sports-terms/glossary-baseball-terms

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On-deck

The next batter due to bat after the current batter.
Found on https://www.baseballmonkey.com/learn/baseball-terms-slang-defined

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On-deck

The next batter due to bat.
Found on https://www.ducksters.com/sports/baseballglossary.php

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On deck

Refers to the batter who is next up in the batting order. The on-deck batter stands outside the dugout to prepare for his plate appearance.
Found on https://www.encyclo.co.uk/local/22352

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