ponder

Short definition from Wiktionary

Verb

1. 1
   To wonder, think of deeply.
2. 2
   To consider (something) carefully and thoroughly.
3. 3
   To weigh.

Noun

1. 1
   A period of deep thought.

Proper noun

1. 1
   A surname.
2. 2
   A ghost town in Ripley County, Missouri, United States.
3. 3
   A town in Denton County, Texas, United States.