expletive /ek-, ik-splēˈtiv or eksˈpli-tiv/

1. Filling out
2. Added merely to fill up (a line of verse)

1. A swear-word of any kind
2. A meaningless oath
3. A word or anything present merely to fill a gap
4. A word inserted to fill up a sentence or line of verse
5. A meaningless word serving a grammatical purpose only

• teaching aids
• teaching fellow
• teaching fellows
• teaching hospital
• teaching hospitals
• teaching machine
• teaching machines
• teaching practice
• teaching practices
• teachings
• teach-ins
• teachless
• teach school
• teach your grandmother to suck eggs
• tea clipper
• tea clippers
• tea cloth
• tea cloths
• tea cosies
• tea cosy
• tea-cosy
• teacup
• teacupful
• teacupfuls
• teacups