[is that so] {informal} 1. Oh, indeed? That's interesting. - Used […]

[island] See: [SAFETY ISLAND].

[issue] See: [AT ISSUE], [TAKE ISSUE].

[ISTR] "I seem to remember/recall"

[it figures] {informal sentence} It checks out; it makes sense; it […]

[it is an ill wind that blows nobody good] No matter […]

[it never rains but it pours] One good thing or bad […]

[it's a cinch] {informal sentence} It is very easy. * /"What […]

[it's a deal] {informal sentence} Consider it done; OK; it is […]

[it's been ---, it's been real] {informal} Shortened form for "it […]