Alter (verb): to change or modify something.
* Examples: "She altered her dress to fit her new figure." "The architect altered the plans to include a balcony."
Alternative (adjective/noun): offering a choice or possibility.
* Examples: "Is there an alternative route to avoid the traffic?" "He offered an alternative solution to the problem."
Alteration (noun): the act of changing or modifying something.
* Examples: "The dressmaker made several alterations to the gown." "The company's recent alterations to their policies caused controversy."
Altered (adjective): changed or modified.
* Examples: "His altered state of mind made him unpredictable." "The artist's altered vision created a unique style."
Alternate (adjective/verb/noun): to occur or happen in turns, to replace something.
* Examples: "They alternate between working in the office and at home." "The doctor suggested an alternate treatment plan." "The alternate route was longer but more scenic."
Altitude (noun): height, especially above sea level.
* Examples: "The mountain peak reached an altitude of over 10,000 feet." "The plane was flying at a high altitude."
Altruism (noun): selfless concern for the well-being of others.
* Examples: "He donated a large sum of money to charity, demonstrating his altruism." "The nurse showed great altruism in caring for the sick."
Altruistic (adjective): showing selfless concern for others.
* Examples: "Her altruistic actions inspired others to help." "The organization's altruistic mission aims to improve the lives of the poor."
It's important to note that while "alt" is a root word, it is not always used independently. It often appears as part of other words, with a variety of meanings related to change, choice, height, or selfless concern.