Yesterday I wrote about one of the four principles of the Pimsleur method - that it demands of learners לִשְׁלוֹף (leesh-LOHF - to pull out) words that they've learned just when they're about to forget them, thus maximizing long-term memory potential. This is the principal of "graduated-interval recall."
Another one of Pimsleur's principles is that of "core vocabulary" - that is, we (Pimsleur aficionados, such as the teachers at Ulpan La-Inyan) start off assisting students to learn the most essential words, phrases and structures necessary for basic communication. Thus students leave the classroom on Day One of Level 1 with something useful to say... and on Day 30 with a smile as they give Israelis directions and invite their Israeli friends to dinner - all in Hebrew.
Essential words would be called, in Hebrew, מִלִּים חִיּוּנִיּוֹת (mee-LEEM khee-yoo-nee-YOT). One essential word would be מִלָּה חִיּוּנִית (mee-LAH khee-yoo-NEET).
I challenge you to use this word, חיוני/ת/ות, twice today.
In the meantime, practice...