/ ˈmɜːtʃəndaɪzɪŋ; NAmE ˈmɜːrtʃ-/ noun [ U ]
1.
( especially NAmE ) the activity of selling goods, or of trying to sell them, by advertising or displaying them
2.
products connected with a popular film / movie, person or event; the process of selling these goods :
millions of pounds' worth of Batman merchandising