The /v/ sound is spelled with <v> or <ve>, while the /ʤ/ sound is spelled <j>, <g> or <ge>.
The contrast is between a labio-dental fricative and an alveolar affricate, both voiced. It is not a problem for any learners.
Interesting pairs include:
The mean density value is 2.2%. The list makes 52 semantic distinctions, a loading of 49%.
cave cage caved caged caving caging derv dirge gave gage invest ingest invested ingested investing ingesting invests ingests leave liege levees ledges passive passage pave page paved paged paving paging rave rage raved raged raving raging rev Reg save sage serve serge serve surge served surged serving surging stave stage staved staged staving staging V G V's G's vac jack vacs jacks vain Jane vale gaol vales gaols van Jan vane Jane vase jars vaunt jaunt vaunted jaunted vaunting jaunting vaunts jaunts veer jeer veered jeered veering jeering veers jeers veil gaol veiled gaoled veiling gaoling veils gaols vein Jane vend genned vendor gender vendors genders venerate generate venerated generated venerates generates venerating generating veneration generation venerations generations venial genial vent gent vents gents Venus genus very Gerry verve verge vest jest vested jested vesting jesting vests jests vesture gesture vestured gestured vestures gestures vesturing gesturing vet jet vetted jetted vetting jetting vets jets vibe gibe vibes gibes vigour jigger vim Jim visas Jesus voice Joyce voiced joist void joyed volley jolly volleyed jollied volleying jollying volleys jollies volt jolt volts jolts VP GP waive wage waived waged waiving waging waiver wager waivers wagers wave wage waved waged waving waging waver wager wavered wagered wavering wagering wavers wagers weaver ouija weavers ouijas
John Higgins, Shaftesbury, November 2010.