The words which have been considered by our English grammarians as interjections, are the following, expressive of
1. Joy, as, Hey, Io.
2. Grief, Ah, alas, alack.
3. Wonder, Vah! hah! aha!
4. Aversion, Tush, pish, pshaw, foh, fie, pugh.
5. Laughter, Ha, ha, ha.
6. Desire of attention, Hark, lo, halloo, hem, hip.
7. Languor, Heigh ho.
8. Desire of silence, Hush, hist, mum.
9. Deliberation, Hum.