In the Old Testament there are seven Hebrew words translated "trust", which itself occurs 155 times.  "Trust" is the New Testament word "believe".

i.  batah = to confide in, so as to be secure and without fear.  This is the word rendered "trust" in 107 passages, viz. every passage except those given below.

ii.  hasah = to flee for refuge to, take shelter in.  This is the word rendered "trust" in thirty-seven passages, viz. Deut. 32:37.  Judg. 9:15.  Ruth 2:12.  2Sam. 22:3, 31.  Pss. 2:12; 5:11; 7:1; 11:1; 16:1; 17:7; 18:2, 30; 25:20; 31:1, 19; 34:8, 22; 36:7; 37:40; 57:1; 61:4; 64:10; 71:1; 73:28; 91:4; 118:8, 9; 141:8; 144:2.  Prov. 30:5.  Isa. 14:32; 30:2, 3; 57:13.  Nah. 1:7.  Zeph. 3:12.

iii.  'aman = to put faith in; hence, to stay or rest on.  Rendered "trust" in six passages, viz. Judg. 11:20.  Job 4:18; 12:20; 15:15, 31.  Mic. 7:5.

iv.  hul = to tarry, or wait for, once :  Job 35:14.

v.  galal = to roll on, or devolve, once :  Ps. 22:8.

vi.  yahal = to wait on, or for, with confidence, twice :  Job 13:15.  Isa. 51:5.

vii.  rehaz = to rely on, once.  Dan. 3:28.