We found one dictionary that defines the word keep to the straight and narrow:

Miscellaneous (1 matching dictionary)

1. keep to the straight and narrow: Idioms

▸ Words similar to keep to the straight and narrow ▸ Usage examples for keep to the straight and narrow ▸ Idioms related to keep to the straight and narrow ▸ Wikipedia articles (New!) ▸ Words that often appear near keep to the straight and narrow ▸ Rhymes of keep to the straight and narrow ▸ Invented words related to keep to the straight and narrow