1. To practice insuring.

2. To write under something else; to subscribe; to subscribe one's name for insurance.

3. Underwritten.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• underwritier,
• undewriter,
• underwrie,
• underwritter,
• undergrate,
• underwritng,
• underwrter,
• underwiter,
• underwring,
• underwriten,
• underfrime,
• undersrite,
• underweite,
• undewrite,
• underwite,
• undrewrite,
• underrwite,
• underwirte,
• underwritte,
• undarripe

• undergrow,
• underway,
• underlie,
• underweight,
• underbred,
• under it,
• undershirt,
• undercarriage,
• underworld,
• underskirt,
• undershot,
• undernourish,
• undersoil,
• undergarment,
• undersign,
• underwear,
• underage,
• undersurface,
• undersize,
• underdone,
• under fire,
• underling,
• underlying,
• undercoated,
• undercut,
• underpart,
• undersea,
• unmoderated,
• undercurrent,
• underwing,
• underwriter,
• undersell,
• underwater,
• under arms,
• undershrub,
• undercoat,
• undermine,
• underprice,
• underside,
• understated,
• understate,
• underfoot,
• undertow,
• underwood,
• underseal,
• undertone,
• underrate,
• undertide,
• underline,
• underfur,
• undertake,
• underived,
• underact,
• underpin,
• underfed,
• underhill,
• underbid,
• underquote,
• undersized,
• underfelt,
• undergird,
• underdown.

The adverb form of "underwrite" is "underwriting".

The adjective form of the word "underwrite" is "underwritten".

The plural form of the word "underwrite" is "underwrites"

The singular form of the word "underwrite" is "underwriter"