Brain Teaser Of The Day: One Letter Of Separation

Each group of three definitions describes three words that are spelled the same, except for one letter (each group describes a different set of words).

Example: king, ring, wing.

1a) competition
1b) satisfied
1c) the circumstances surrounding an act or event

2a) to rain hard
2b) sullen
2c) a number

3a) a tartan skirt
3b) a heated enclosure used for drying
3c) to deprive of life

4a) to contaminate
4b) to force into something
4c) flea

scarecrow