a crucial question or issue
- Sixty-fourth rest
noun, Music. 1. a rest equal in time value to a sixty-fourth note.
noun 1. a cardinal number, 60 plus 9. 2. a symbol for this number, as 69 or LXIX. 3. a set of this many persons or things. 4. Slang: Vulgar. simultaneous oral-genital sexual activity between two partners. adjective 5. amounting to 69 in number. noun 1. another term for soixante-neuf sixty
adjective 1. next after the sixty-eighth; being the ordinal number for 69. 2. being one of 69 equal parts. noun 3. a sixty-ninth part, especially of one (1/69). 4. the sixty-ninth member of a series.
noun 1. a cardinal number, 60 plus 1. 2. a symbol for this number, as 61 or LXI. 3. a set of this many persons or things. adjective 4. amounting to 61 in number.