une bande dessinée (une BD)
A comic: a story told in a sequence of drawings with text.
une case
A panel: one picture frame in a comic.
une bulle (un phylactère)
A speech bubble. A thought bubble is connected by small circles.
un récitatif (un cartouche)
A caption box, usually at the top of a panel, giving time, place or narration.
une onomatopée
A word that imitates a sound: VRRR, TOC, BOUM.
une inférence
A conclusion you draw from clues that the text doesn't say directly.
un journal de lecture
A reading journal: notes on what you read, the strategies you used and your reactions.