Mahjong related terms

[hidarikiki]

Guys,
just to be sure:

11) 振り込む is another synonym of 打ち込む? Means to discard/to throw with the nuance "to throw a wrong tile?"
12) 振る　is a synonim of 打つ、捨てる and 切る、 right?
13) 先打 is the first player to discard? Is different from 先攻?
14) 後打 is the second player to discard?　Is different from 後攻?
15) アガる means "to win" in this context, right? So, for example, "アガれる方のロン牌 is "the tile you could use for Ron"?

I'm sorry to bother you, but I always find new terms and I would like to be sure of their meaning. I'm trying to understand this game but it's so damn complex XD

[yasuto]

Hope I can be of your help.

11) 振り込む is another synonym of 打ち込む? Means to discard/to throw with the nuance "to throw a wrong tile?"
Yes.
12) 振る　is a synonim of 打つ、捨てる and 切る、 right?
Yes.
13) 先打 is the first player to discard? Is different from 先攻?
I am not sure. I have never seen or heard of the word before. It could simply mean a player whose turn to play is earlier than another (後打) player among four. t could also mean throwing a specific tile in an early stage of the game. I googled and found a word 好牌先打, which means throwing a valuable tile in an early stage of the game.
14) 後打 is the second player to discard?　Is different from 後攻?
I am not sure. I have never seen or heard of the word before. It could simply mean a player whose turn to play is later than another (先打) player among four.
15) アガる means "to win" in this context, right? So, for example, "アガれる方のロン牌 is "the tile you could use for Ron"?
Yes.

[hidarikiki]

Dear Yasuto,
many thanks as always! Let me say your help is very, very precious to me.
Thank you so much again