Trwy = "Trueway", definitely.

Here's what I have set up to test so far (all variations on the letter E and then working backwards alphabetically):

[*]1: “E” Rd, 2: 'E' Rd, 3: E. Rd, 4: “E.” Rd, 5: 'E.' Rd,

[*]1: “e” Rd, 2: 'e' Rd, 3: e. Rd, 4: “e.” Rd, 5: 'e.' Rd, 6: e Rd,

[*]1: Wash, 2: Wash., 3: WASH, 4: WLS, 5: WELLS, 6: We., 7: UNS, 8: U.S., 9: US, 10: US-50,

[*]1: VALLY, 2: VLYS, 3: VIADCT, 4: VWS, 5: Villge, 6: VLGS, 7: VILLAGES, 8: VLGS, 9: VSTA,

[*]1: Tsse, 2: Thick, 3: Thwy, 4: Tline, 5: TRKS, 6: TR, 7: TRLS, 8: TUNLS, 9: Trnabt, 10: TRPK,

[*]1: St., 2: Sr, 3: Sr., 4: Sent, 5: SHR, 6: SHRS, 7: Smokey Mts,

[*]1: So., 2: SE Fir Dr, 3: Fir Dr SW, 4: SPRNG, 5: SPGS, 6: SPNGS, 7: SPRNGS, 8: SPUR, 9: SQRE,

[*]1: SQS, 2: SQRS, 3: SH-119, 4: STATN, 5: STN, 6: STRM, 7: STREME, 8: STS, 9: Sudiv, 10: So,

[*]1: RADIEL, 2: RADL, 3: RNCHS, 4: Rg, 5: RDGS, 6: RIVR, 7: RVR, 8: RT, 9: Rle, 10: ,

[*]1: PKS, 2: PKY, 3: PKWYS, 4: Pass, 5: Ptway, 6: PKE, 7: PKES, 8: PNE, 9: PLNS, 10: Plat,

[*]1: PLZA, 2: Pte, 3: PTS, 4: PORT, 5: PRTS, 6: Pvt, 7: Prom, 8: , 9: , 10: ,