By a side door
On the sly and by a side door are semantically related. In some cases you can replace phrase "On the sly" with "By a side door", this phrases are similar.
On the sly
On the sly adverb - In a furtive manner.
By a side door and on the sly are semantically related. Sometimes you can replace phrase "By a side door" with "On the sly", this phrases are similar.
Mutual synonyms
Cite this Source
On the sly and By a side door. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/by_a_side_door/on_the_sly
By a side door & On the sly. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/by_a_side_door/on_the_sly>.
On the sly or By a side door. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/by_a_side_door/on_the_sly.
