[hou] 
| 1. | in what way or manner; by what means?: How did the accident happen? |
| 2. | to what extent, degree, etc.?: How damaged is the car? |
| 3. | in what state or condition?: How are you? |
| 4. | for what reason; why?: How can you talk such nonsense? |
| 5. | to what effect; with what meaning?: How is one to interpret his action? |
| 6. | what?: How do you mean? If they don't have vanilla, how about chocolate? |
| 7. | (used as an intensifier): How seldom I go there! |
| 8. | by what title or name?: How does one address the president? |
| 9. | at what price: How are the new cars going, cheaper than last year's models? |
| 10. | by what amount or in what measure or quantity?: How do you sell these tomatoes? |
| 11. | in what form or shape?: How does the demon appear in the first act of the opera? How does the medication come? |
| 12. | the manner or way in which: He couldn't figure out how to solve the problem. |
| 13. | about the manner, condition, or way in which: I don't care how you leave your desk when you go. Be careful how you act. |
| 14. | in whatever manner or way; however: You can travel how you please. |
| 15. | Informal. that: He told us how he was honest and could be trusted. |
| 16. | a question concerning the way or manner in which something is done, achieved, etc.: a child's unending whys and hows. |
| 17. | a way or manner of doing something: to consider all the hows and wherefores. |
| 18. | a word formerly used in communications to represent the letter H. |
| 19. | and how! Informal. certainly! you bet!: Am I happy? And how! |
| 20. | Here's how, Informal. (used as a toast). |
| 21. | how come? Informal. how is it that? why?: How come you never visit us anymore? |
| 22. | how so? how does it happen to be so? why?: You haven't any desire to go? How so? |
and how!
Emphatically so. This idiom is an interjection used to stress agreement, as in Did you enjoy the play?
And how! it was wonderful. It probably originated as a direct translation of the German Und wie! [1920s]