1. (

• guideline ,

) a light line that is used in lettering to help align the letters ;

2. (

• road_map ,
• guideline ,

) a detailed plan or explanation to guide you in setting standards or determining a course of action; "the president said he had a road map for normalizing relations with Vietnam" ;

3. (

• guidepost ,
• guideline ,
• rule_of_thumb

) a rule or principle that provides guidance to appropriate behavior ;