[in relation to] or [with relation to] {prep.} In connection with; […]

[in respect to] or [with respect to] In connection with; related […]

[in return] {adv. phr.} In order to give back something; as […]

[in reverse] {adj.} or {adv. phr.} In a backward direction; backward. […]

[in round figures] {adv. phr.} As an estimated number; as a […]

[in round numbers] See: [IN ROUND FIGURES].

[in search of] or {literary} [in quest of] {prep.} Seeking or […]

[in season] {adv.} or {adj. phr.} 1. {literary} At the proper […]

[in secret] {adv. phr.} In a private or secret way; in […]

[in shape] or [in condition] {adj. phr.} In good condition; able […]