

定規を使って線を引いてください。
ちょっと定規を借りてもいいですか。
定規は筆箱に入っていません。
"じょうぎ(定規)" is in the lesson "Stationery" (Level 5), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.