Yes — "off" is an early sight word, often taught right alongside "of" since the two look so similar but sound completely different ("off" rhymes with "cough", while "of" rhymes with "love").
The cat jumped off the table.
"Off" itself is spelled regularly — the double "f" simply makes a normal "f" sound. It earns a spot on sight word lists mainly because it's so visually similar to "of", and children benefit from practicing the two side by side until the difference is automatic rather than a source of mix-ups.
Show "of" and "off" next to each other and ask your child to spot the difference (one "f" vs. two) — a quick visual comparison prevents the two from blending together in memory.
Word Wizard teaches "off" with Flash Cards, Listen & Pick, Spell It, and Write It — four game modes that turn repetition into play.
See "off" with its picture, syllables, and example sentence — with native audio.
Hear "off" spoken aloud and pick it out from similar-looking words.
Build "off" letter by letter from shuffled tiles.
Word Wizard turns sight word practice into a game — Flash Cards, Listen & Pick, Spell It and Write It, from Pre-K through Grade 5.