how to say “crossword puzzle” in Hebrew
תַּשְׁבֵּץ
The root שׁ.ב.צ (sh.b.ts) means checkered or plaited.
Thus a slot on a calendar is called a מִשְׁבֶּצֶת 
listen and repeat, and an informal way of saying to book an appointment is לְשַׁבֵּץ פְּגִישָׁה listen and repeat.
listen and repeat, and an informal way of saying to book an appointment is לְשַׁבֵּץ פְּגִישָׁה listen and repeat.For example:
שִׁבַּצְתִּי אֶת הַפְּגִישָׁה שֶׁלָּךְ עִם הַמְּנַהֵל לְתֵּשַׁע וָחֵצִי, זֶה בְּסֵדֶר?
I booked your (a female’s) meeting with the manager (a male) for nine thirty, is that okay?
And the board full of slots called a crossword puzzle is called a תַּשְׁבֵּץ listen and repeat (in Biblical Hebrew, something plaid).
listen and repeat (in Biblical Hebrew, something plaid).For example:
סַבְתָּא מְאֹד אוֹהֶבֶת אֶת הַתַּשְׁבֵּצִים שֶׁלָּה.
Grandma loves her crossword puzzles.