If you have been following my blog posts, you know that our trick for ש , sin, is that the transliteration of this letter is SIN, which we all know is doing bad. The black sheep of the family is the one who has done "bad things", so we use a black sheep in our silly word picture. שדה, sah-DEH means "field" in Hebrew. It's not too hard to picture a FIELD full of black sheep to remember that sah-DEH שדה is spelled with the sin.
Now a word with samech: ספר , SEH-fer, which means "book, written scroll" in Hebrew. Our tip for remembering samech is that the letter name sounds like "stomach" in English. So our silly word picture should involve our stomach...hhmmm.. .how about thinking of "Reader's Digest" magazine? Or that we "digest" what we read, like a book? If you are into Biblical allusions, there is the scroll that was eaten and tasted sweet like honey ( יחזקאל , Yechezk'el 3:3) A similar account is in Revelation 10:10 in the Renewed Covenant scriptures, but here the sweet honey in the mouth turned sour or bitter in the stomach. So...ספר SEH-fer, book, is spelled with the samech.
I hope you are having as much fun as I am with this series of special Hebrew mnemonics for "sound alike" letters!! Don't hesitate to email (firstname.lastname@example.org) or comment below if you think of your own. I would love to hear your ideas! The sillier the bettier.