spandrel or spandril /spanˈdrəl/

1. The space between the curve of an arch and the enclosing mouldings, string-course, or the like (architecture)
2. A self-contained area of surface space (esp triangular) available for decorative use, eg in graphic design or forming part of a structure

• in the smallest
• in the soup
• in the swim
• in the teeth of
• in the teeth of the wind
• in the thick of
• in the throes
• in the top flight
• in the twinkle of an eye
• in the twinkling of an eye
• in the wake of
• in the way of
• in the wind
• in the wind's eye
• in the wings
• in the world
• in the wrong
• in the wrong box
• in the zone
• in this connection
• in this day and age
• in this regard
• in thought
• inthral
• in thrall