ai - love.
shoujo - 1. manga that involves real life characters in real life situations connecting through real life relationships.
shonen - guy.
hentai - extremely perverted.
ecchi - somewhat perverted.
genre - type of manga (e.g. romance, romantic comedy, action, fantasy, science fiction, etc.)
shonen-ai - guy relationships.
yaoi - refers to hentai.
atari - rough draft of a page.
waku - frame line.
sumiire - filling in with black.
ami - patterns of tone composed of dots.
2. girl.