Definition of "instantly" []

• At once. (adverb)
• With insistence; urgently. (adverb)
• Chiefly British As soon as. (conjunction)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Thus the final sentence above, which means literally “they shall never become blue instantly,” signifies “Grant that they shall never become blue”, i.e., shall never fail in their purpose, _and grant our petition instantly_."
• "She changed her expression instantly to one of gratitude and then reached out to take my hand."
• "Sabine chuckled at Hettiahs statement, then her expression instantly turned cold when she faced her brother."