I guess
and I expect; I suppose; I suspect 1. a phrase that introduces a supposition. (Frequently, in speech, suppose is reduced to 'spose, and expect and suspect are reduced to 'spect. The apostrophe is not always shown.) Bob: I guess it's going to rain. Bill: Oh, I don't know. Maybe so, maybe not. Alice: I expect you'll be wanting to leave pretty soon. John: Why? It's early yet.
2. a vague way of answering 'yes'. John: You want some more coffee? Jane: I 'spose. Alice: Ready to go? John: I spect.
I guess not.
and (I) don't think so.; I expect not.; I suppose not.; I suspect not.; I think not.a vague statement of negation. (More polite or gentle than simply saying no. Frequently, in speech, suppose is reduced to 'spose, and expect and suspect are reduced to 'spect. The apostrophe is not always shown.) Bill: It's almost too late to go to the movie. Shall we try anyway? Mary: I guess not. Tom: Will it rain? Mary: I 'spect not.
I guess (so).
and I believe so.; I expect (so).; I suppose (so).; I suspect (so).; I think so.a vague expression of assent. (Frequently, in speech, suppose is reduced to 'spose, and expect and suspect are reduced to 'spect. The apostrophe is not always shown.) Tom: Will it rain today? Bob: I suppose so. Sue: Happy? Bill: I 'spect. Sue: You don't sound happy. Bill: I guess not.
suspect someone of something
to think or believe that someone has done something. I suspect the clerk of stealing. Ted was suspected of leaving the door unlocked when he left last Friday.