A wire with terminal, (10) includes a barrel (23) formed in a rear end part of a terminal fitting (15) such that two crimping pieces (27) extend from both widthwise side edges of a base plate (24) and crimped to surround an exposed area (14) of a core (12) with extending end parts (27E) of the crimping pieces (27) held close to each other, and a mold (30) covering the entire exposed area of the core (12) including a crimped part to the barrel (23) in a liquid-tight manner. A front end of the core (12) is disposed behind those of the crimping pieces (27). The barrel (23) is formed with a communicating portion (29) for causing a crimping space (28) of the barrel (23) to be open in an outer peripheral surface of the barrel (23) on a side before the front end of the core (12).