Nba Spread Betting- Away Pick??

https://wizardofodds.com/games/sports-betting/nba/ = Source

Betting Against the Spread
Bet Prob. Win Prob. Loss Prob. Push House Edge (Laying 110) House Edge (Laying 108) House Edge (Laying 105)
Home Underdogs 48.45% 49.47% 2.08% 5.43% 4.61% 3.33%
Home Favorites 48.34% 49.67% 1.99% 5.72% 4.91% 3.63%
Home Pick 48.45% 51.55% 0.00% 7.50% 6.68% 5.40%
Away Underdogs 49.67% 48.34% 1.99% 3.19% 2.35% 1.04%
Away Favorites 49.47% 48.45% 2.08% 3.47% 2.64% 1.33%
Away Pick 51.55% 48.45% 0.00% 1.59% 0.73% -0.64%
All Home 48.37% 49.64% 1.99% 5.66% 4.85% 3.57%
All Away 49.64% 48.37% 1.99% 3.25% 2.41% 1.10%
All Favorites 48.65% 49.34% 2.02% 5.11% 4.29% 3.00%
All Underdogs 49.34% 48.65% 2.02% 3.80% 2.97% 1.66%
Overall 49.01% 49.01% 1.99% 4.46% 3.63% 2.33%

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CAN SOMEONE PLEASE EXPLAIN WHAT AN "AWAY-PICK" is ????? with a 51.55% win prob. ???????????

What is the difference between an "away-pick" and "away" "underdog/favourite" ?????

pick-(th)em means a zero pointspread. The game winner wins the bet.
Away-pick means a pick-em game that the away team wins.
You would still pay 1.10 on your choice to win 1.00.