momentarily

"The power went out, causing a momentary darkness before the generator kicked in. "

"My daughter's teacher is very kind and helpful. "

"Wait a moment, while I lock the front door."

"She paused for only an instant, which was just enough time for John to change the subject."

"The plane is about to land."

"You have twenty minutes to complete the test."

"The child's reading skills improved progressively throughout the year. "

"The sun warmed my face as I walked to school. "

"We need to leave early tomorrow morning to catch our flight from the airport. "

"She waited the bus, hoping it would arrive soon. "

"The duration of the meeting was only thirty minutes. "

"My sister learned to write in a very careful manner. "