/ ˌʌndəˈraɪt; NAmE -dərˈr-/ verb ( under·wrote / -ˈrəʊt; NAmE -ˈroʊt/ under·writ·ten / -ˈrɪtn; NAmE /) [ vn ] ( technical )
1.
to accept financial responsibility for an activity so that you will pay for special costs or for losses it may make
2.
to accept responsibility for an insurance policy so that you will pay money in case loss or damage happens
3.
to agree to buy shares that are not bought by the public when new shares are offered for sale