altitude — If something is at a particular altitude, it is at that height above sea level.
amplitude — In physics, the amplitude of a sound wave or electrical signal is its strength.
aptitude — Someone's aptitude for a particular kind of work or activity is their ability to learn it quickly and to do it well.
attitude — Your attitude to something is the way that you think and feel about it, especially when this shows in the way you behave.
gratitude — the quality or feeling of being grateful or thankful: He expressed his gratitude to everyone on the staff.
latitude — Geography. the angular distance north or south from the equator of a point on the earth's surface, measured on the meridian of the point. a place or region as marked by this distance.
magnitude — size; extent; dimensions: to determine the magnitude of an angle.
Four-or-more syllable rhymes
order of magnitude — You can use order of magnitude when you are giving an approximate idea of the amount or importance of something.