1. Used before a noun phrase, including a simple noun
2. Used before a noun phrase, including a simple noun
3. Used before a noun phrase, including a simple noun
4. Used before a noun phrase, including a simple noun
5. (colloquial) Used before a noun phrase, including a simple noun
6. Used before a noun phrase, including a simple noun
7. Used before a noun phrase, including a simple noun
8. Used before a noun phrase, including a simple noun
9. Used before a noun phrase, including a simple noun
10. Used before a noun phrase, including a simple noun
11. Used with an adjective
12. Used with an adjective
13. Used with an adjective

The star that the Earth revolves around and from which it receives light and warmth.

1. Representation created in the mind without the use of one's faculties of vision, sound, smell, touch, or taste; an instance of thinking.
2. The operation by which mental activity arise or are manipulated; the process of thinking; the agency by which thinking is accomplished.
3. A way of thinking (associated with a group, nation or region).
4. Anxiety, distress.
5. The careful consideration of multiple factors; deliberation.
6. A very small amount, distance, etc.; a whit or jot.

Because.

The first letter of the English alphabet, written in the Latin script.

1. A unit of time which is one sixtieth of an hour (sixty seconds).
2. (informal) A short but unspecified time period.
3. A unit of angle equal to one-sixtieth of a degree.
4. A (usually formal) written record of a meeting or a part of a meeting.
5. A unit of purchase on a telephone or other similar network, especially a cell phone network, roughly equivalent in gross form to sixty seconds' use of the network.
6. A point in time; a moment.
7. A nautical or a geographic mile.
8. An old coin, a half farthing.
9. (obsolete) A very small part of anything, or anything very small; a jot; a whit.
10. A fixed part of a module.
11. (slang) A while or a long unspecified period of time