What does the phrase ‘notch up’ typically mean?

The phrase ‘notch up’ typically means to achieve something, often in the context of reaching a specific goal or milestone. It often connotes a sense of accomplishment, such as scoring points in a game or achieving a particular target in work or personal endeavors. This expression emphasizes the successful completion or gain of an objective, highlighting the progress made.

In various contexts, the term is frequently used to describe the act of reaching a new accomplishment, such as "notching up a win" or "notching up experience." This rich usage supports the idea of positive achievement, making it clear why this interpretation is fitting.

The other options do not align with the common understanding of the phrase. Erasing or ignoring tasks do not reflect the idea of accomplishment inherent in the phrase, while reducing effort is contrary to the concept of achieving something, which typically requires exertion and effort.