Noun:
* Person: "The head of the company is very successful."
* Body part: "He scratched his head in confusion."
* Top part: "The head of the table was carved with intricate designs."
* Leader: "The head of state addressed the nation."
* Part of a plant: "The head of the lettuce was fresh and crisp."
* Coin: "He flipped a head."
Verb:
* To lead: "She heads the research team."
* To go in a certain direction: "The car headed north."
Adjective:
* First: "The head table at the wedding was reserved for family."
Prepositional Phrase:
* At the top: "They stood at the head of the stairs."
Idioms:
* Head over heels: "She fell head over heels in love with him."
* Head for: "They headed for the beach."
* Head off: "We headed off the problem before it got out of hand."
The part of speech "head" plays in a sentence will depend on the context and how it is used.