[in progress] {adj. phr.} Going ahead; being made or done; happening. […]

[in public] {adv. phr.} 1. In a place open to the […]

[in quest of] See: [IN SEARCH OF].

[in question] {adj. phr.} 1. In doubt; in dispute; being argued […]

[in reason] {adv. phr.}, {formal} Following the rules of reasoning; sensibly; […]

[in reference to] or [with reference to] or [in regard to […]

[in regard to] See: [IN REFERENCE TO].

[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 […]