From that day on, the robot was no longer lonely.

Meaning: The robot was happy and no longer felt alone.

Choice of Words: From means starting at a particular time or place. Day is a period of 24 hours. On means continuing or happening during a particular period of time. Robot is a machine that can do things on its own. Lonely means feeling sad or isolated because you don't have anyone to spend time with.

Alternative Expressions

Related Expressions