進
This Chinese character means go forward.
You can watch how to write this. - (「進」の書き順（筆順）動画 - 漢字書き順辞典)
There are 3 ways to read this, "すすむ (進)" or "すすめる (進める)" or "しん".
"すすむ (進)" or "すすめる (進める)" are verbs which mean go forward.
When this is combined with other Chinese characters, this is read as "しん".
"進学 (しんがく)" means go on to the next stage of education.
"前進 (ぜんしん)" means advance.
"進歩 (しんぽ)" means progress.
"進化 (しんか)" means evolution.
Attack on Titan is "進撃の巨人 (しんげきのきょじん)" in Japanese.
"巨人 (きょじん)" means titan.
"撃 (げき)" means attack, shoot, defeat.
"進撃 (しんげき)" means advance and attack.
By Higashi-Mikawa Kyōjindō Shujin (東三河狂人堂主人)