S: (n) security, surety (property that your creditor can claim in case you default on your obligation) "bankers are reluctant to lend without good security"
S: (n) deposit (a payment given as a guarantee that an obligation will be met)
S: (v) deposit, bank (put into a bank account) "She deposits her paycheck every month"
S: (v) situate, fix, posit, deposit (put (something somewhere) firmly) "She posited her hand on his shoulder"; "deposit the suitcase on the bench"; "fix your eyes on this spot"