目安

1. Origins, structure, and basic meaning

• Structure: 目安 (めやす) is a rough guideline or target for planning and judgment. It appears as something set and a predicated guide.
• Basic usage: A daily page target is set; ten minutes on foot is given as a guide to travel time.

2. Common pitfalls and similar expressions

• Self-set reading target and approximate travel estimate
  • 目安を決める sets a plan; 目安です labels information as approximate. It is not an exact guarantee.